{"title":"Constellation Audio","description":"Constellation Audio was founded on the premise that one cannot create something extraordinary through slavish adherence to established methods. When tradition is the best path. When new technology is necessary to achieve the performance they wanted, they invented it. When they found a radical circuit topology that delivered a substantial advance in sound quality, they used itConstellation Audio sought out the greatest names in audio engineering and industrial design, the creative minds behind many of history's greatest audio products. Audiophiles will recognize the names of audio engineers such as John Curl, Bascom King, Peter Madnick, and Demian Martin. They will also recognize the work of industrial designer Neal Feay, who is responsible for the look and feel of many of the highend audio industry's most distinctive products.","products":[{"product_id":"constellation-audio-inspiration-series-preamp-1-0","title":"Constellation Audio Inspiration Series -  Preamp 1.0","description":"Triple-transformer power supply:\u003cbr\u003e\nThe design of the power supply in the Inspiration borrows heavily from the Altair II and Virgo II. We chose R-core transformers to power the audio circuits because of their inherently low noise and low radiated magnetic energy -- and because they worked so well in our previous designs. There are separate R-core transformers for left and right channels. A conventional EI transformer powers the control circuits, so the sensitive audio circuits are well-isolated from the noise of the control circuits. \u003cbr\u003e\u003cbr\u003e\n\nLine Stage Gain Module:\u003cbr\u003e\n We use our Line Stage Gain Module circuit in all Constellation Audio products, from the Inspiration series to the Reference series. This unique topology uses servo circuits to achieve an essentially perfect balance between the positive and negative halves of the audio signal. The result is, simply, a more lifelike sound, one free of the colorations that conventionally designed balanced preamp circuits can impart.\u003cbr\u003e\u003cbr\u003e\n\nFully balanced audio circuitry:\u003cbr\u003e\n Like our more costly preamps, the Inspiration line stage employs fully complementary balanced circuitry, in which the signal is amplified by two identical, mirror-imaged preamp circuits, one for the positive half of the signal, one for the negative half. This arrangement cancels interference while doubling the slew rate, yielding an impressive 100-kilohertz frequency response.\u003cbr\u003e\u003cbr\u003e\n\nDouble-supported chassis joints to minimize vibration:\u003cbr\u003e\n The thick, machined aluminum panels that make up the Inspiration Line Stage's chassis are assembled using a unique combination of steel buttresses and a CNC-machined joinery system somewhat like the tongue-in-groove structure found in fine woodwork. The result is a chassis far stiffer and less prone to vibration than in most preamps in this price range.\u003cbr\u003e\u003cbr\u003e\n\nMechanically isolated circuit boards:\u003cbr\u003e\n To prevent microphonics and other vibration-induced distortions in the Inspiration Line Stage's sensitive audio circuits, we isolate the circuit boards from the main chassis using a pliable material. All connections from the power supply are made through cables that float freely between the power supply and the main preamp board, so they can't be affected by external disturbances and so they won't carry vibration from the power supply into the preamp circuits.\u003cbr\u003e\u003cbr\u003e\n \nHome theater bypass mode:\u003cbr\u003e\nFor those who don't want to sacrifice sound quality, yet want to enjoy two-channel music and home theater surround sound in the same system, the Inspiration Line Stage offers a home theater bypass mode. One of its inputs can be configured to receive the left and right channel signals from a surround-sound processor. In stereo, the signal passes only through the Inspiration line stage and the connected amp, so two-channel performance is completely unaffected by the home theater equipment.\u003cbr\u003e\u003cbr\u003e\n \nConstellation Direct interface:\u003cbr\u003e\n Like the Altair II and Virgo II preamps, the Inspiration Line Stage features the Constellation Direct interface. This interface routes the high-level, perfectly balanced audio signal from the preamp's Line Gain Stage Module straight into the voltage gain stage of a Constellation Audio amplifier. It bypasses the amplifier's own Line Gain Stage Module, removing one amplification stage from the signal chain and achieving even greater musicality in the process.\u003cbr\u003e\u003cbr\u003e\n\nMachined aluminum remote:\u003cbr\u003e\n Because the Inspiration line stage's elegant chassis comes from the same machine shop that builds our Reference and Performance series products, we simply couldn't use a generic remote. Thus, the Inspiration line stage's remote, like all of our others, is made from machined aluminum and has a suitably gratifying heft and feel.\u003cbr\u003e\u003cbr\u003e\n\nFull dual mono construction:\u003cbr\u003e\n The Inspiration line stage's left and right audio channels have their own isolated, separate power supplies, each channel with its own low-noise R-core transformer. The preamp circuits and even the input and output jacks are arranged with the left channel components on the left side and the right-channel components on the right side. This arrangement delivers extraordinary channel separation, resulting in spectacular imaging and soundstaging.\u003cbr\u003e\u003cbr\u003e\n\nSpecification:-\u003cbr\u003e\n\nInputs  3 XLR stereo, 3 RCA stereo, USB (for control)\u003cbr\u003e \nOutputs  2 XLR stereo, 2 RCA stereo, 12-volt trigger\u003cbr\u003e \nTHD+N  Less than 0.001%, 20 Hz - 20 kHz @ 2V out\u003cbr\u003e\n Less than 0.1%, 20 Hz - 20 kHz @ 10V out\u003cbr\u003e \nFrequency response  10 Hz to 100 kHz, ±0.5 dB \u003cbr\u003e\nSignal-to-noise ratio  Greater than -105 dB, A-weighted \u003cbr\u003e\nInput impedance (balanced)  20 KΩ \u003cbr\u003e\nInput impedance (unbalanced)  10 KΩ\u003cbr\u003e \nOutput impedance  Less than  50Ω \u003cbr\u003e\nVolume control resolution  0.5dB from 0dB to -90 dBFS \u003cbr\u003e\nWeight  25 lbs, 11.3 kg\u003cbr\u003e \nDimensions (W x H x D)  17” x 5.25” x 15”\n43.2 cm x 13.3 cm x 38.1 cm \n\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409593540940,"sku":"CONSTELLATIONAUDIOPREAMP1.0","price":10831.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio_Preamp-1.0.jpg?v=1777489162"},{"product_id":"constellation-audio-inspiration-series-stereo-1-0-power-amplifier","title":"Constellation Audio - Inspiration Series - Stereo 1.0 Power Amplifier","description":"200 watts per channel into 8 ohms:\u003cbr\u003e\nWith power output conservatively rated at 0.2% total harmonic distortion plus noise, doubling to 400 watts into 4 ohms, the Inspiration STEREO 1.0 has enough power to drive practically any speaker to maximum volume without audible distortion.\u003cbr\u003e\u003cbr\u003e\n\nBalanced bridged design from Hercules and Centaur:\u003cbr\u003e\nThe Inspiration STEREO 1.0 uses a modular, fully balanced design with only N-type output transistors, instead of half N-type and half P-type as found in almost all other solid-state amplifiers. Thus, the positive and negative halves of the audio signal are maintained in ideal balance and the subtlest of musical details are preserved.\u003cbr\u003e\u003cbr\u003e\n\nLine Stage Gain Module:\u003cbr\u003e\nIncoming signals are treated to our Line Stage Gain Module circuitry, which uses servo circuits to achieve essentially perfect balance between the positive and negative haves of the audio signal. If a Constellation Audio preamplifier is used, this input stage may be bypassed through use of the Inspiration STEREO 1.0's Constellation Direct balanced input.\u003cbr\u003e\u003cbr\u003e\n\nFully discrete circuitry:\u003cbr\u003e\nAs with our other amplifiers, we use only discrete components in the Inspiration STEREO 1.0’s audio circuits.\u003cbr\u003e\u003cbr\u003e\n\nUltra-smooth, high-current power supply:\u003cbr\u003e\nA large, custom-wound toroidal transformer feeds a bank of 24 capacitors rated at 10,000 microfarads each, assuring that the Inspiration STEREO 1.0's output stages have more than enough current to deliver their rated power with ease -- and enough dynamic output to achieve concert-sound levels, if your speakers are up to it.\u003cbr\u003e\u003cbr\u003e\n\nNo output filters required:\u003cbr\u003e\n The inherent stability of our Balanced Bridged design allows us to dispense with the Zobel output filter network many amplifiers require to maintain reliable operation.\u003cbr\u003e\u003cbr\u003e\n\n \n\n \nShortest possible signal path:\u003cbr\u003e\nBy placing the transformer at the front of the Inspiration STEREO 1.0 and moving the output stages to the rear, we ensure the shortest possible signal path and very low output impedance.\u003cbr\u003e\u003cbr\u003e\n\nShielded enclosure for power supply:\u003cbr\u003e\n To minimize interaction of the transformer's electromagnetic fields with the audio circuits, we place the transformer in its own enclosure and shield it with thick aluminum plates. A special shielded channel carries the AC voltage from the power input to the power supply enclosure.\u003cbr\u003e\u003cbr\u003e\n\n\nSpecifications:- \u003cbr\u003e\n\nInputs   1 Constellation Direct XLR, 1 standard balanced XLR, 1 unbalanced RCA \u003cbr\u003e\nOutputs   metal binding posts\u003cbr\u003e \nPower output per channel, 8Ω (1 kHz @ 1% THD+N)   200 watts\u003cbr\u003e \nPower output per channel, 4Ω (1 kHz @ 1% THD+N)   400 watts \u003cbr\u003e\nFrequency response   10 Hz to 80 kHz, +0\/-0.5 dB \u003cbr\u003e\nGain   14dB Constellation Direct, 26 dB Balanced and RCA \u003cbr\u003e\nTHD+N (1 kHz @ up to 90% of rated power)   Less than 0.05% \u003cbr\u003e\nOutput impedance   0.1Ω\u003cbr\u003e \nDamping factor (8Ω load)   80 \u003cbr\u003e\nInput impedance   20KΩ Constellation Direct, 10KΩ RCA unbalanced, 20KΩ XLR balanced \u003cbr\u003e\nSiganl-to-noise ratio  Greater than -95 dB, A-weighted\u003cbr\u003e \nOutput noise   Less than 70 µV, 500 kHz BW, -116 dB @ 250 watts\u003cbr\u003e \nWeight   55 lbs\/24.9 kg \u003cbr\u003e\nDimensions   8.5 x 17.0 x 19.0 in\n 216 x 432 x 483 mm \n\n\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409593868620,"sku":"CONSAUDIOSTEREO1.0","price":12498.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Inspiration-Series-Stereo-1.0.jpg?v=1777489166"},{"product_id":"constellation-audio-inspiration-series-mono-1-0-power-amplifier","title":"Constellation Audio Inspiration Series - Mono 1.0 Power Amplifier","description":"400 watts per channel into 8 ohms:\u003cbr\u003e\nThe Inspiration Monoblock not only delivers 400 watts into 8 ohms, it doubles that into 4 ohms -- and at a low 0.2% total harmonic distortion plus noise (THD+N), not the 0.5% or 1% at which many other amps are rated. No matter what speaker you have or how loudly you want to play it, the Inspiration Monoblock can drive it with ease.\u003cbr\u003e\u003cbr\u003e \n\nOur exclusive Balanced Bridged design:\u003cbr\u003e\n All of our amplifiers employ our exclusive Balanced Bridged balanced design. Other solid-state amplifiers use half N-type and half P-type output transistors, so they can never achieve a perfect balance between the positive and negative halves of the audio signal. Our amplifiers use only N-type output transistors, so the audio signal is kept in ideal balance and even the subtlest microdynamics and detail are conveyed without alteration.\u003cbr\u003e\u003cbr\u003e\n\nHigh-current power supply for maximum dynamics:\u003cbr\u003e\n The Inspiration Monoblock uses a front-mounted, custom-wound toroidal transformer in conjunction with a capacitor bank totalling 240,000 microfarads of storage. This arrangement ensures that the supply can deliver ultra-smooth, completely stable continuous DC voltage as well as exceedingly high peak power for the most demanding musical transients.\u003cbr\u003e\u003cbr\u003e\n\nThick power supply shielding for cleaner audio performance:\u003cbr\u003e\n To protect the sensitive audio circuits from electromagnetic interference produced by the Inspiration Monoblock's massive power supply transformer, we shield the transformer in its own enclosure in the front of the amp using thick aluminum plates.\u003cbr\u003e\u003cbr\u003e\n\nLine Stage Gain Module:\u003cbr\u003e\nWe use this preamplification circuit in every Constellation Audio product because we think it's the best one ever designed. The Line Stage Gain Module continuously monitors the balance between the positive and negative halves of the audio signal using a servo circuit, so noise, interference and flaws in upstream equipment cannot throw the signal out of balance.\u003cbr\u003e\u003cbr\u003e\n\n \n\n \nFully discrete circuitry:\u003cbr\u003e\nTo assure maximum performance, lowest noise and unrestrained dynamics, we use only discrete components -- such as transistors, resistors and capacitors -- in the Inspiration Monoblock's amplification circuits. There are no ICs in the signal path.\u003cbr\u003e\u003cbr\u003e\n \nRear-mounted output stage for low output impedance:\u003cbr\u003e\n To minimize the Inspiration Monoblock's output impedance -- and thus to maximize damping factor and achieve nearly instantaneous “stop on a dime” woofer performance -- we moved the amp's power supply to the front and the output stage to the rear, right next to the speaker cable binding posts. \u003cbr\u003e\u003cbr\u003e\n\nFilter-free output stage:\u003cbr\u003e\n Many high-end amplifiers use a Zobel filter network on the output stage to assure stability, but this filter limits bandwidth and can produce its own colorations. The inherent stability of our Balanced Bridged design makes an output filter unnecessary.\u003cbr\u003e\u003cbr\u003e\n\n\nSpecifications:- \u003cbr\u003e\n\nInputs   1 Constellation Direct XLR, 1 standard balanced XLR, 1 unbalanced RCA \u003cbr\u003e\nOutputs   metal binding posts \u003cbr\u003e\nPower output per channel, 8Ω (1 kHz @ 0.2% THD+N)   400 watts \u003cbr\u003e\nPower output per channel, 4Ω (1 kHz @ 0.2% THD+N)   800 watts \u003cbr\u003e\nFrequency response   10 Hz to 80 kHz, +0\/-0.5 dB \u003cbr\u003e\nGain   14dB Constellation Direct, 26 dB Balanced and RCA \nTHD+N (1 kHz @ up to 90% of rated power)   Less than 0.05%\u003cbr\u003e \nOutput impedance   0.1Ω \u003cbr\u003e\nDamping factor (8Ω load)   80 \u003cbr\u003e\nInput impedance   20KΩ Constellation Direct, 10KΩ RCA \u003cbr\u003eunbalanced, 20KΩ XLR balanced \u003cbr\u003e\nSiganl-to-noise ratio  Greater than -95 dB, A-weighted \nOutput noise   Less than\u003cbr\u003e 70 µV, 500 kHz BW, -116 dB @ 250 watts \u003cbr\u003e\nWeight   55 lbs\/24.9 kg \nDimensions   8.5 x 17.0 x 19.0 in\n 216 x 432 x 483 mm ","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409593901388,"sku":"CONSTAUDIOMONO1.0","price":12498.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Inspiration-Series-Mono-1.0.jpg?v=1777489171"},{"product_id":"constellation-audio-performance-series-argo-integrated-amplifier","title":"Constellation Audio Performance Series - Argo Integrated Amplifier","description":"Line Stage Gain Module:\u003cbr\u003e\nThe Argo employs the same core preamplification circuit found in all other Constellation Audio products: our Line Stage Gain Module, which employs servo circuits and hand-selected field-effect transistors (FETs) to achieve an essentially perfect balance between the positive and negative halves of the audio signal. In the Argo, this signal travels directly into the power amplifier circuitry with no additional gain stage needed, just as in a system employing our separate amps and preamps. The result is musicality that is truly incredible not only for an integrated amplifier, but for any audio component.\u003cbr\u003e\u003cbr\u003e \n\nHome theater bypass:\u003cbr\u003e\n We know that two-channel music systems sometimes have to serve as part of a home theater surround-sound system. The Argo's home theater bypass function allows it to serve as the amplifier for the front left and right speakers of a home theater system without compromising two-channel sound quality in any way.\u003cbr\u003e\u003cbr\u003e\n\nCustom-wound toroidal transformer with dual-mono power supply filtration:\u003cbr\u003e\n The Argo's integral power supply starts with a custom-wound toroidal transformer. From there, AC power travels into separate storage capacitors, rectifiers and voltage regulators for each channel. Thus, heavy demands on one channel do not influence the performance of the other channel.\u003cbr\u003e\u003cbr\u003e\n\nExclusive balanced bridged amplifier circuitry:\u003cbr\u003e\n The Argo's power amplification is constructed from the same single-ended, 125-watt circuit schematic used for Constellation Audio's Hercules II and Centaur power amplifiers. While the Argo cannot match the power and dynamics of those larger amplifiers, its transparency, musicality and sound are fundamentally the same.\u003cbr\u003e\u003cbr\u003e\n\nOptional USB DAC and phono preamp modules:\u003cbr\u003e\n Two ports in the back of the Argo accommodate optional digital-to-analog converter and phono preamp modules, making the Argo an all-in-one audio entertainment component. Just add speakers.\u003cbr\u003e\u003cbr\u003e\n\nThick 8.2mm metal components for superior shielding:\u003cbr\u003e\n Key chassis components in the Argo are machined from solid slabs of aluminum to a minimum thickness of 8.2mm, which is necessary to block 50\/60 Hz electromagnetic interference from household wiring and appliances. With interference blocked, every smallest detail of the music is free to pass through.\u003cbr\u003e\u003cbr\u003e\n\n \n\n \nIntegral headphone amplifier:\u003cbr\u003e\nThe Argo offers a feature as yet found in no other Constellation Audio component: a headphone amplifier capable of driving any dynamic or planar-magnetic headphone to live-concert levels without the slightest hint of dynamic compression-even with the most insensitive, hard-to-drive headphones. \u003cbr\u003e\u003cbr\u003e\n\nXLR balanced line output:\u003cbr\u003e\n If you someday decide to upgrade to a larger amplifier, the Argo is ready-the back panel has a stereo XLR balanced output, suitable to driver the Constellation Audio Hercules II and Centaur amps (or any other high-quality power amp).\u003cbr\u003e\u003cbr\u003e\n\nFront-panel touchscreen control system:\u003cbr\u003e\n Through a 432 x 230-pixel front touchscreen, the Argo provides instant access to its advanced features without cluttering up the unit with unneeded physical switches.\u003cbr\u003e\u003cbr\u003e\n\nMachined aluminum remote control:\u003cbr\u003e\n The Argo's striking industrial design is complemented by an equally striking remote control, machined from aluminum to complement the Argo's looks. The remote's hefty feel and ergonomic design help make the Argo sheer pleasure to use.\u003cbr\u003e\u003cbr\u003e\n\nSpecifications:-\u003cbr\u003e\n\nInputs   2 XLR, 2 RCA, USB (for service and control systems), 3.5mm jack for 12-volt trigger \u003cbr\u003e\nOutputs   Argento Clamps speaker cable connectors, XLR balanced line-level, 1\/4-inch\/6.2mm headphone jack \u003cbr\u003e\nPower output, 8Ω (1 kHz @ 1% THD+N)   125 watts\u003cbr\u003e \nPower output, 4Ω (1 kHz @ 1% THD+N)   230 watts \u003cbr\u003e\nFrequency response   10 Hz to 200 kHz, +0.5\/-0.25 dB\u003cbr\u003e \nGain   38.6 dB \u003cbr\u003e\nVolume control resolution  0.5 dB steps from 0 dB to -99.5 dBFS \u003cbr\u003e\nTHD+N (1 kHz @ 25W into 8Ω)   0.005% \u003cbr\u003e\nOutput impedance   0.08Ω \u003cbr\u003e\nDamping factor (8Ω load)   100 \u003cbr\u003e\nInput impedance   20KΩ unbalanced, 40KΩ balanced \u003cbr\u003e\nOutput noise   -83 dB A-weighted \u003cbr\u003e\nWeight   40 lbs \u003cbr\u003e\nDimensions   5.5\"\/140mm x 17\"\/432mm x 15.75\"\/400mm (hwd) \n\n\n\n\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409593934156,"sku":"CONSTAUDIOARGO","price":29165.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/awaiting-image_729b30a7-2e84-449d-80db-2198976bd667.jpg?v=1777489175"},{"product_id":"constellation-audio-performance-series-virgo-iii-pre-amplifier","title":"Constellation Audio Performance Series - Virgo III Pre Amplifier","description":"Chassis-width, triple-transformer power supply:\u003cbr\u003e\n\n The Virgo power supply design is borrowed directly from the Reference Series Altair preamp. This triple-transformer supply offers separate, isolated feeds for the left and right channels, as well as a separate feed for control circuits. Because each channel of audio cannot be affected by the power demands of the other (or of the control circuits), maximum sonic purity is achieved. The power supply now stretches the full width of the preamplifier, so the preamp section can sit directly atop the power supply. \u003cbr\u003e\u003cbr\u003e\n\nLine Stage Gain Module:\u003cbr\u003e\n One of the core technologies that make Constellation Audio products so extraordinary is this unique module, which is designed to deliver a more perfect match between the positive- and negative-going halves of the audio signal than conventional balanced preamplifiers can. The result is greater detail, incredible depth and a sound that comes that much closer to the perfectly natural tonality one experiences at a live event.\u003cbr\u003e\u003cbr\u003e\n\nFully balanced audio circuitry:\u003cbr\u003e\n Because the Line Stage Gain Module employs fully complementary balanced circuitry, with the signal amplified by two “mirror-imaged” preamp circuits, it cancels interference, reduces noise to the vanishing point, and achieves an exceptional slew rate with frequency response out to 200 kilohertz.\u003cbr\u003e\u003cbr\u003e\n\nHome theater bypass mode:\u003cbr\u003e\n One of Virgo II’s inputs can be configured for home theater bypass, so that it passes the left and right front channels from a surround-sound decoder directly through to the amplifiers and speakers, without affecting the surround-sound system’s volume or channel-to-channel balance. Selecting any other input returns the system to two-channel mode.\u003cbr\u003e\u003cbr\u003e\n\n \n\n \nMeticulous mechanical isolation:\u003cbr\u003e\n To protect the sensitive audio circuits from external vibration, we mount them on a metal “raft” that floats on an elastomeric suspension. We further isolate the circuits by separating Virgo II’s jack panel from the chassis with a pliable material. The metal construction of the “raft” shields the audio circuits from any interference emitted by the control circuits underneath.\u003cbr\u003e\u003cbr\u003e \n\nThick 8.2mm metal chassis for superior shielding:\u003cbr\u003e\nWe build Virgo II’s chassis from solid slabs of aluminum machined to a minimum thickness of 8.2mm, which is necessary to block 50\/60 Hz electromagnetic\n interference from household wiring and appliances. No sheet metal chassis can shield audio circuits anywhere near as effectively as the Virgo II’s heavy, sturdy enclosure can.\u003cbr\u003e\u003cbr\u003e\n\nConstellation Direct interface:\u003cbr\u003e\n When Virgo II is used with any Constellation Audio amplifier, it can be connected via the Constellation Direct interface, which transmits a perfectly balanced audio signal from the Virgo’s gain stage straight into the power amplifier. This connection bypasses the input modules of the amplifiers, thus reducing the number of gain stages in the signal chain and achieving even greater musicality.\u003cbr\u003e\u003cbr\u003e\n\nMachined aluminium remote control:\u003cbr\u003e\n Any component as beautifully designed as Virgo II simply wouldn’t feel right with a conventional remote control, so we designed one to suit the preamp’s physical aesthetics. The machined aluminum body and backlit buttons of the remote provide a comfortable, gratifying feel and easy operation in any level of room light.\u003cbr\u003e\u003cbr\u003e\n\nAdvanced front-panel control system:\u003cbr\u003e\n Virgo II combines the intuitive feel of traditional knobs and buttons with a 432 x 230-pixel display that provides complete access to all of the preamp’s advanced features, such as input renaming and gain presetting for each input.\u003cbr\u003e\u003cbr\u003e\n\n\nSpecifications:- \u003cbr\u003e\n\nInputs  4 XLR stereo, 4 RCA stereo \u003cbr\u003e\nOutputs  2 XLR stereo, 2 RCA stereo \u003cbr\u003e\nTHD+N (RI Greater than 10 K?)  Less than 0.001%, 20 Hz - 20 kHz @ 2V out\n Less than 0.1%, 20 Hz - 20 kHz @ 10V out \u003cbr\u003e\nFrequency response  10 Hz to 200 kHz, ±0.5 dB \u003cbr\u003e\nOutput noise  Less than or equal to 20 µV dB, 20 Hz - 20 kHz \u003cbr\u003e\nInput impedance (balanced)  200 KΩ \u003cbr\u003e\nInput impedance (unbalanced)  100 KΩ\u003cbr\u003e \nOutput impedance  Less than 50Ω \u003cbr\u003e\nVolume control resolution  0.5dB from 0dB to -90 dBFS\u003cbr\u003e \nWeight, preamp  35 lbs\/16 kg \u003cbr\u003e\nWeight, power supply  22 lbs\/10 kg\u003cbr\u003e \nDimensions, preamp  5.50 x 17.00 x 15.75 in (hwd)\u003cbr\u003e\n140 x 432 x 400mm (hwd) \u003cbr\u003e\nDimensions, power supply  5.00 x 17.00 x 14.50 in (hwd)\u003cbr\u003e\n 127 x 432 x 368 mm (hwd) \n","brand":"Constellation Audio","offers":[{"title":"Constellation Audio Performance Series - Virgo III Pre Amplifier","offer_id":57409593966924,"sku":"CONSTAUDIOVIRGOIII","price":33331.67,"currency_code":"GBP","in_stock":true},{"title":"Constellation Audio DC Filter for Virgo III Pre Amplifier","offer_id":57422362181964,"sku":"CONSAUDIODCFILTER","price":6500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/awaiting-image_71532e91-5654-4905-9db9-d111eaa48305.jpg?v=1777489179"},{"product_id":"constellation-audio-performance-series-perseus-phono-pre-amplifier","title":"Constellation Audio Performance Series - Perseus Phono Pre Amplifier","description":"Fully complementary circuitry:\u003cbr\u003e\n The Perseus's balanced audio circuitry is essentially two mirror-imaged preamp circuits, one to amplify the positive half of the audio signal, the other to amplify the negative half. The fully balanced design cancels the effects of interference-an important capability considering the low level of the signals inside a phono preamp-and also increases slew rate and frequency response.\u003cbr\u003e\u003cbr\u003e\n \nMechanically isolated circuit board:\u003cbr\u003e\n The audio circuit board floats on an elastomeric suspension to isolate it from the effects of outside vibration. Consider it like a raft floating on a calm lake, protected from disturbances on shore.\u003cbr\u003e\u003cbr\u003e\n\nMachined solid aluminium chassis:\u003cbr\u003e\n A heavy aluminium chassis with 8.2mm minimum wall thickness shields the internal circuitry from all forms of electromagnetic interference, and also helps damp vibration that might affect the audio circuitry.\u003cbr\u003e\u003cbr\u003e\n\nBalanced and unbalanced inputs and outputs:\u003cbr\u003e\n Easily interfaces with any turntable and any preamplifier.\u003cbr\u003e\u003cbr\u003e\n\nThree moving-coil inputs, one moving-magnet input:\u003cbr\u003e\n Ample inputs even for the most exotic triple-tonearm turntables.\u003cbr\u003e\u003cbr\u003e\n\nAdjustable source impedance:\u003cbr\u003e\n The Perseus provides enough adjustment range to suit any cartridge manufacturer's specification or any personal taste. Source impedance for the moving-coil cartridge inputs is continuously adjustable from 3Ω to 500Ω, while source impedance for the moving-magnet cartridge input can be set to 33KΩ, Separate Power Supply47KΩ, 68KΩ or 100KΩ.\u003cbr\u003e\u003cbr\u003e\n\nAdjustable load capacitance:\u003cbr\u003e\n The Perseus's load capacitance can be set from 200 to 400 pF in 50-pF increments to meet the needs of any moving-magnet phono cartridge.\u003cbr\u003e\u003cbr\u003e\n\n \n\n \n Separate power supply:\u003cbr\u003e\n A separate power supply enclosure protects the sensitive analog audio circuits from interference. A high-quality R-core transformer feeds the analog audio circuitry while a separate supply feeds the Perseus's control circuitry. Hypersonics cables and connectors provide a reliable, high-current power transfer. The result is an ample and consistent supply of clean DC.\u003cbr\u003e\u003cbr\u003e\n\nSpecifications:- \u003cbr\u003e\n\nInputs   3 stereo XLR and 3 stereo RCA \u003cbr\u003e\nOutputs   1 stereo XLR, 1 stereo RCA \u003cbr\u003e\nGain, B and UB (Balanced and Unbalanced)   65db max \u003cbr\u003e\nTHD+N   Less than .005% 10Hz - 20kHz \u003cbr\u003e\nFrequency response   +\/-0.10db 10Hz - 20kHz \u003cbr\u003e\nOutput noise   -100 dB re 2V output, 20 Hz to 20 kHz \u003cbr\u003e\nLoad impedance, MC inputs   0Ω to 500Ω \u003cbr\u003e\nLoad impedance, MM input   10KΩ to 100KΩ \u003cbr\u003e\nLoad capacitance, MM input   100 to 400 pF, selectable \u003cbr\u003e\nOutput impedance, B and UB   Less than 50 ohm \u003cbr\u003e\nEQ curve   RIAA \u003cbr\u003e\nWeight, phono preamp   35 lbs\/16 kg \u003cbr\u003e\nWeight, power supply   22 lbs\/10 kg \nDimensions, phono preamp   5.50 x 1\u003cbr\u003e7.00 x 15.75 in (hwd)\n140 x 432 x 400mm (hwd) \u003cbr\u003e\nDimensions, power supply   5.00 x 17.00 x 14.50 in (hwd)\n 127 x 432 x 368 mm (hwd)","brand":"Constellation Audio","offers":[{"title":"Constellation Audio Performance Series - Perseus Phono Pre Amplifier","offer_id":57409593999692,"sku":"CONSTAUDIOPERSEUS","price":33331.67,"currency_code":"GBP","in_stock":true},{"title":"Constellation Audio DC Filter for Perseus Phono Pre Amplifier","offer_id":57422362214732,"sku":"CONSAUDIODCFILTERPERSEUS","price":6500.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/awaiting-image_71cc7c3c-8c33-4c5c-ba56-87450dcaba75.jpg?v=1777489183"},{"product_id":"constellation-audio-performance-series-centaur-ii-stereo-power-amp","title":"Constellation Audio Performance Series - Centaur II Stereo Power Amp","description":"Centaur II Stereo\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eA state-of-the-art race car.\u003c\/b\u003e\u003cbr\u003e\n\nNew power supply with 3 times the capacitance. Higher bias current for extended Class A operation. 250 watts per channel into 8 ohms, 800 into 2 ohms. Fully discrete balanced bridged circuitry for extraordinary fidelity. Larger, deep-fin heat sink for efficient cooling and outstanding reliability.\u003cbr\u003e\u003cbr\u003e\n\n Think of Centaur II as a state-of-the-art race car with an upgraded engine. The amplification circuits are essentially the same as in the original Centaur, but the power supply is radically improved. Supply capacitance is now tripled, with 18 10,000-microfarad capacitors replacing the original six. With three times as much stored energy on tap, Centaur II now achieves even stronger deep bass response and more dramatic dynamics.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eGetting the best possible sound.\u003c\/b\u003e\u003cbr\u003e\n\nTo make the most of Centaur II's expanded energy stores, they added a larger heat sink with deeper fins. With this additional cooling efficiency, they were free to raise bias current by 25 percent. The amplifier now spends more time running in Class A, which means less crossover distortion and better retrieval of even the most minuscule musical details.\u003cbr\u003e\u003cbr\u003e\n\n The new chassis is deeper and 40 percent heavier than the original. Yet the core circuitry, which made the original Centaur one of the world's most acclaimed amplifiers, remains the same. The concept, created by their \"dream team\" of audio engineers, was to combine multiple small, single-ended amplifier modules to achieve the power of a large amplifier. This gave them the delicacy and detail of a smaller amplifier with the power and dynamics of a large amp.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003ePerfectly balanced circuitry\u003c\/b\u003e\u003cbr\u003e\n\nCentaur II uses the same balanced bridged circuit topology found in all Constellation Audio amplifiers. The fully complementary design uses separate amplifiers for the positive and negative halves of the signal, ensuring the lowest possible noise and the best possible frequency response.\u003cbr\u003e\u003cbr\u003e\n\nOther complementary designs use different types of transistors to amplify the positive and negative halves of the incoming audio, resulting in an imbalanced signal. Centaur II instead uses only N-type output transistors. Along with other circuit refinements, the all-N-type design results in an essentially perfect signal balance – and fidelity exceeded only by our own Hercules II amplifiers.\u003cbr\u003e\u003cbr\u003e\n\nSuch perfect balance in an amplifier benefits the listener only if the incoming signal is perfectly balanced. To this end, Centaur II's input stage is the same Line Stage Gain Module found in the Virgo preamp. Like the rest of the amplifier, this stage is fully complementary, with separate circuits for positive and negative halves of the signal. By using hand-selected, low-noise FETs and servo circuits, the Line Stage Gain Module brings any incoming signal into essentially perfect positive\/negative balance. Customers who own Constellation Audio preamps may use the Constellation Link interface to bypass the Centaur II's gain module.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eSeemingly endless power\u003c\/b\u003e\u003cbr\u003e\n\nCentaur II's incomparable audio circuitry would achieve little without a clean, abundant source of power. This is why we used a 1,600-watt, custom-wound toroidal transformer with separate windings for the left and right channels. Each channel effectively has its own source of power, so high demands on one do not affect the other. Fully regulated supplies for all line-level circuits eliminate interference from outside sources.\u003cbr\u003e\u003cbr\u003e\n\nThe power supply's ample current allows Centaur II to drive any speaker, even the most exotic full-range models. The 250-watt-per-channel rating at 8 ohms doubles to 500 watts at 4 ohms. At 2 ohms, an impedance few amplifiers can handle, Centaur II delivers a staggering 800 watts per channel. Even at such high output levels, the modular amplifier design is inherently stable; unlike many amplifiers, it does not need a Zobel network at the output to damp high frequencies.\u003cbr\u003e\u003cbr\u003e\n\nThanks to the new deep-fin heat sinks and the air flow provided by hundreds of large ventilation holes in the sides of the chassis, Centaur II runs cool, placing minimum stress on its output transistors and driver circuits. Push it as hard as you like and it answers with impeccable fidelity no matter how demanding the speakers, the program material or the volume.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eA substantial refinement to an extraordinary amp\u003c\/b\u003e\u003cbr\u003e\n\nCentaur II's greatly expanded power supply capacitance and heat sink capacity take our revolutionary amplifier technologies to even greater heights. Centaur II builds on the original Centaur's signature blend of musicality and muscle with improved deep bass performance; the greater detail and smoother textures of extended Class A operation; and dynamics that are, quite literally, staggering. No matter what you expect from a stereo amplifier, Centaur II can deliver far more.\u003cbr\u003e\u003cbr\u003e\n\n\nTechnical Specifications:-\u003cbr\u003e\u003cbr\u003e\n\n\nInputs:\n\n2 XLR (1 for Constellation Link), 1 RCA\u003cbr\u003e\n\n\nOutputs:\n\nmetal binding posts\u003cbr\u003e\n\n\nPower output:\n\n\n250 watts, 8Ω (1 kHz @ 1% THD+N)\n\n500 watts, 4Ω (1 kHz @ 1% THD+N)\n\n800 watts, 2Ω (1 kHz @ 1% THD+N)\u003cbr\u003e\n\n\nGain:\n\n14dB (Constellation Direct)\/26 dB Balanced \u0026amp; RCA\u003cbr\u003e\n\n\nOutput noise:\n\n \u0026lt; 70 µV, 500 kHz BW, -116 dB @ 250 watts\u003cbr\u003e\n\n\nDamping factor (8Ω load):\n\n160\u003cbr\u003e\n\n\nTHD+N:\n\n\n \u0026lt; 0.05%, 1 kHz @ rated power\u003cbr\u003e\n\n\nFrequency response:\n\n10 Hz to 100 kHz, +1\/-0.5 dB\u003cbr\u003e\n\n\nInput impedance (balanced):\n\n20 KΩ\u003cbr\u003e\n\n\nInput impedance (unbalanced):\n\n10 KΩ\u003cbr\u003e\n\n\nOutput impedance:\n\n0.05Ω\u003cbr\u003e\n\n\nWeight:\n\n\n130 lbs \/ 59 kg\u003cbr\u003e\n\n\nDimensions (W x H x D):\n\n\n18.75 x 11.5 x 24.25 in (whd)\n 47.6 x 29.2 x 61.6 cm (whd)\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409594065228,"sku":"CONSTELAUDIOCENTAURIISTEREO","price":44998.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Centaur-II-Stereo.jpg?v=1777489192"},{"product_id":"constellation-audio-reference-series-altair-ii-pre-amplifier","title":"Constellation Audio Reference Series - Altair II Pre Amplifier","description":"Line Stage Gain Module:\u003cbr\u003e\n We build the Line Stage Gain Module’s balanced circuit from two mirror-imaged amplifiers, one for the positive half of the signal and the other for the negative half. Through the use of hand-matched, ultra-low-noise FETs and servo circuits, our engineers have achieved an essentially perfect balance between the positive and negative halves of the audio signal.\u003cbr\u003e\u003cbr\u003e \n\nFully balanced circuitry:\u003cbr\u003e\n Because the Line Stage Gain Module's circuit is fully complementary, comprising two identical circuits, it automatically cancels incoming noise and interference while increasing slew rate and frequency response. As a result, Altair II achieves an extraordinary 200-kilohertz bandwidth.\u003cbr\u003e\u003cbr\u003e\n\nSimple, elegant remote control:\u003cbr\u003e\n The new machined aluminum infrared remote control provides a gratifying, friendly interface with Altair II. The remote’s soft leather cladding feels comfortable in the hand, and also provides a slip-resistant grip. All of Altair II’s most commonly used functions can be controlled from the remote.\u003cbr\u003e\u003cbr\u003e\n\nUser-friendly front touchscreen:\u003cbr\u003e\n Altair II’s front touchscreen accesses all of the preamp’s advanced functions, including input configuration and all other setup parameters. Large, high-contrast fonts allow the display to be read from across a room.\u003cbr\u003e\u003cbr\u003e\n\nIncomparable mechanical isolation:\u003cbr\u003e\n Altair II’s audio circuits are double-isolated from vibration. Each Line Stage Gain Module is mounted on a sandwich of an isolating polymer layer between two stainless steel sheets. An elastomeric suspension in turn supports this platform. Highly flexible, custom-made wiring prevents any vibration on the chassis from reaching the “floated” circuit boards. The sheer mass of the Altair II chassis and internal assembly also helps damp vibration.\u003cbr\u003e\u003cbr\u003e\n\nHome theater bypass mode:\u003cbr\u003e\n Through the front touchscreen, one of Altair II’s inputs may be configured for home theater bypass. This mode allows the left and right channels from a surround-sound processor to pass through Altair II, permitting the same left\/right speakers and amplifiers to be used for two-channel or multichannel reproduction without having to make volume adjustments. Switching to any other input restores two-channel sound.\u003cbr\u003e\u003cbr\u003e\n\nNearly impermeable shielding:\u003cbr\u003e\n Key circuit modules inside Altair II are isolated from the others to reduce interference to the lowest possible levels. A machined aluminum shield protects each individual Line Stage Gain Module, while formed aluminum enclosures shield the control circuits. The thick walls of the machined aluminum chassis provide additional shielding against outside interference.\n\u003cbr\u003e\u003cbr\u003e\nMachined solid aluminum chassis:\u003cbr\u003e\n In order to block 50\/60 Hertz electromagnetic interference from household circuits, we encase Altair II’s inner workings in an enclosure machined from solid billets of aluminum to a minimum wall thickness of 8.2mm. These thick walls cannot resonate or vibrate as a sheet metal enclosure can.\u003cbr\u003e\u003cbr\u003e\n\nConstellation Direct balanced interface:\u003cbr\u003e\n Owners of Constellation Audio’s Hercules and Centaur amplifiers can experience an even higher level of quality from Altair II through our Constellation Direct interface, which bypasses the input module of the amplifiers to reduce the number of gain stages in the signal chain. This reduces noise and improves reproduction of musical detail.\u003cbr\u003e\u003cbr\u003e\n\nTriple-transformer power supply:\u003cbr\u003e\n Altair II’s power supply incorporates three separate R-core transformers, one for left channel analog audio, one for right channel analog audio, and one for control circuitry. The power supply’s machined aluminum enclosure shields the audio section of Altair II from the transformers’ electromagnetic energy. Custom-extruded PCOCC cables tipped with aerospace-type Hypertronics connectors carry the separate the three separate power feeds to the Altair II main chassis.\u003cbr\u003e\u003cbr\u003e\n\nOptically controlled resistors for volume control:\u003cbr\u003e\n An array of 48 optically controlled resistors provides far more precision and sonically transparent volume control than even the highest-quality potentiometers can. A temperature-compensated tracking circuit that maintains ideal signal balance in all conditions. Because the optically controlled resistors are electrically isolated from the control circuits, they are as sonically benign and musically transparent as a conventional high-quality resistor.\u003cbr\u003e\u003cbr\u003e\n\nSpecifications:- \u003cbr\u003e\n\nInputs  4 XLR stereo, 4 RCA stereo \u003cbr\u003e\nOutputs  2 XLR stereo, 2 RCA stereo \u003cbr\u003e\nRecording outputs  1 XLR stereo, 1 RCA stereo\u003cbr\u003e\n \nTHD+N (RI greater than 10 KΩ)  Less than0.001%, 20 Hz - 20 kHz @ 2V out\u003cbr\u003e\n Less than 0.1%, 20 Hz - 20 kHz @ 10V out \u003cbr\u003e\nFrequency response  10 Hz to 200 kHz, ±0.5 dB \u003cbr\u003e\nOutput noise  Less than or equal to 20 µV dB, 20 Hz - 20 kHz \u003cbr\u003e\nInput impedance (balanced)  200 KΩ \u003cbr\u003e\nInput impedance (unbalanced)  100 KΩ \u003cbr\u003e\nOutput impedance  Less than 50Ω\u003cbr\u003e \nVolume control resolution  0.1, 0.5, or 1 dB; user-selectable \u003cbr\u003e\nWeight, line stage  84 lbs\/38.2 kg \u003cbr\u003e\nWeight, power supply  26.2 lbs\/11.4 kg\u003cbr\u003e \nDimensions, line stage  5.53 x 17.50 x 14.82 in (hwd)\n 140.4 x 444.5 x 376.4mm (hwd)\u003cbr\u003e \nDimensions, power supply  2.82 x 17.50 x 14.50 in (hwd)\n 71.6 x 444.5 s 368.3mm (hwd) \n\n\n\n\n","brand":"Constellation Audio","offers":[{"title":"Constellation Audio Reference Series - Altair II Pre Amplifier","offer_id":57409594130764,"sku":"CONSTAUDIOREFALTAIR2","price":0.0,"currency_code":"GBP","in_stock":true},{"title":"Constellation Audio DC Filter for Altair II","offer_id":57422362280268,"sku":"CAUDIODCFILTER-ALTIARII","price":8331.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Reference-Altair-2-and-remote.jpg?v=1777489200"},{"product_id":"constellation-audio-reference-series-hercules-ii-stereo","title":"Constellation Audio Reference Series - Hercules II Stereo","description":"500 watts per channel into 8 ohms:\u003cbr\u003e\n Our 500-watt\/8-ohm per-channel power rating for the Hercules II Stereo is actually pretty conservative; it’s really more like 550 watts. And 750 watts into 4 ohms, and a full 1 kW into 2 ohms. Thanks to its increased power supply capacitance and ample cooling capacity, the Hercules II Stereo drives low-impedance speakers with ease.\u003cbr\u003e\u003cbr\u003e\n \nModular circuit concept:\u003cbr\u003e\n Instead of achieving the Hercules II Stereo’s in the traditional way—just bulking it up with more output devices—we build it from numerous 125-watt single-ended modules. It thus has the musicality of smaller amplifier, and the power and control of a large amplifier.\u003cbr\u003e\u003cbr\u003e\n\nBalanced drive design for superior musicality:\u003cbr\u003e\n In the Hercules II Stereo, as in all Constellation Audio amplifiers, both the positive and negative halves of the audio signal see exactly the same type of output devices: N-type transistors. In other amps, the transistors are half N-type and half P-type, resulting in an inherent signal imbalance.\u003cbr\u003e\u003cbr\u003e\n\nInherently stable circuit design:\u003cbr\u003e\n Our circuit design combines high bandwidth with inherent high stability. Unlike many high-powered amplifiers, the Hercules II Stereo does not need a Zobel network at the output terminals to ensure stability at high frequencies.\u003cbr\u003e\u003cbr\u003e\n\nDual-mono design with one 3,000-watt transformer per channel:\u003cbr\u003e\n Each of the Hercules II Stereo’s channels has its own custom-wound, 3,000-watt toroidal transformer. Both transformers contain multiple isolated sets of windings to supply independent power feeds to various circuits within the amplifier. The isolation of the windings assures consistent voltage and current supply to all of the amplifier’s circuits, regardless of the demand placed on those circuits. Because each channel has its own transformer and supply capacitors, it is unaffected by the operation of the other channel.\u003cbr\u003e\u003cbr\u003e\n\nHigh-efficiency passive cooling:\u003cbr\u003e\n With more than 1,000 watts total power into 8 ohms, the Hercules II Stereo demands a constant, free-flowing supply of cool air. To achieve this without the use of fans, we incorporate two huge heat sinks and hundreds of large ventilation ports to minimize airflow impedance and maximum cooling.\u003cbr\u003e\u003cbr\u003e\n\nPerfect balancing through Line Stage Gain Module:\u003cbr\u003e\n The Hercules II Stereo incorporates two Line Stage Gain Modules, one for each channel. This module uses servo circuits and hand-selected FETs to assure that all incoming signals are perfectly balanced by the time they reach the amplifier stages. This is the same exact circuit found in our Altair II and Virgo line stages, and in all of our source components.\u003cbr\u003e\u003cbr\u003e\n\nConstellation Direct balanced interface:\u003cbr\u003e\n If you are using a Constellation Audio preamplifiers, you can use the Hercules II Stereo’s Constellation Direct input. This input bypasses the amplifier’s Line Gain Stage Module, which simplifies the audio chain for the best possible detail and musicality.\u003cbr\u003e\u003cbr\u003e\n\nSpecification:- \u003cbr\u003e\n\nInputs  4 XLR (2 Constellation Direct), 2 RCA \u003cbr\u003e\nPower output, 8Ω (1 kHz @ 1% THD+N)  550 W \u003cbr\u003e\nPower output, 4Ω (1 kHz @ 1% THD+N)  750 W \u003cbr\u003e\nPower output, 2Ω (1 kHz @ 1% THD+N)  1 kW\u003cbr\u003e \nOutputs  metal binding posts \u003cbr\u003e\nFrequency response  10 Hz to 100 kHz, +1\/-0.5 dB \u003cbr\u003e\nGain  32 dB \u003cbr\u003e\nTHD+N (1 kHz @ rated power)  Less than 0.05% \u003cbr\u003e\nOutput impedance  0.05Ω \u003cbr\u003e\nDamping factor (8Ω load)  150 \u003cbr\u003e\nInput impedance  10KΩ unbalanced, 20KΩ balanced \u003cbr\u003e\nOutput noise  Less than 500 µV, -100 dB @ 250 watts \u003cbr\u003e\nWeight  220 lbs \/ 100 kg \u003cbr\u003e\nDimensions  13\" \/ 330.2mm x 19\" \/ 482.6mm x 32\" \/ 812.8mm (hwd) \n\n\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409594163532,"sku":"CONSTAUDIOREFHERCULES2","price":70833.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Reference-Series-Hercules-2.jpg?v=1777489205"},{"product_id":"constellation-audio-reference-series-hercules-ii-mono","title":"Constellation Audio Reference Series - Hercules II Mono","description":"1,000 watts of power into 8 ohms:\u003cbr\u003e\n With 1 kilowatt of rated power into 8 ohms (and even that is a conservative number), the Hercules II monoblock has more than enough power for any speaker, any space and any listening taste. It handles low-impedance speakers with ease, delivering 1.5 kW into 4 ohms and an incredible 2 kW into 2 ohms.\u003cbr\u003e\u003cbr\u003e\n\nBalanced drive design for superior musicality:\u003cbr\u003e\n By using only N-type output transistors, instead of half N-type and half P-type as in other amplifiers, Hercules II achieves an essentially perfect balance between the positive and halves of the audio signal. As in a single-ended amplifier, the entirety of the audio signal passes through exactly the same type of output device.\u003cbr\u003e\u003cbr\u003e\n\nModular circuit concept:\u003cbr\u003e\nBy building Hercules II from numerous 125-watt single-ended modules, we achieve the sound quality of a small amplifier with a full 1,000 watts of power.\u003cbr\u003e\u003cbr\u003e\n\nDual 3,000-watt power transformers:\u003cbr\u003e\n These custom-wound toroidal transformers contain several isolated sets of windings to supply independent power feeds to various circuits within the amplifier. Because the windings are isolated, the demands of one circuit do not affect the performance of other circuits, and consistent voltage and current are always supplied.\u003cbr\u003e\u003cbr\u003e\n\nNo Zobel network needed:\u003cbr\u003e\n Hercules II’s inherently stable circuit design eliminates the need for a Zobel network at the output terminals to ensure stability at high frequencies.\u003cbr\u003e\u003cbr\u003e\n\nLarge heat sinks with high-flow ventilation ports:\u003cbr\u003e\n An amplifier of Hercules II’s incredible power must have ample and consistent airflow for reliable operation. To ensure that the amplifier runs cool, we equip it with huge heat sinks and hundreds of large ventilation ports that minimize airflow impedance.\u003cbr\u003e\u003cbr\u003e\n\nLine Stage Gain Module:\u003cbr\u003e\n In order to assure that all incoming signals are perfectly balanced and can thus benefit from Hercules II’s balanced drive design, we gave it the same type of input stage we use on all of our line-level components. This fully complementary preamplifier circuit uses hand-selected FETs and servos to achieve an essentially perfect balance between the positive and negative halves of the signal.\u003cbr\u003e\u003cbr\u003e\n\nConstellation Direct balanced interface:\u003cbr\u003e\n Because all Constellation Audio preamplifiers supply a perfectly balanced audio signal at their outputs, Hercules II includes the Constellation Direct input. This input bypasses the amplifier’s Line Gain Stage Module, thus simplifying the audio signal chain and achieving maximum musicality.\u003cbr\u003e\u003cbr\u003e\n\nSpecifications:- \u003cbr\u003e\n\nInputs  2 XLR (1 Constellation Direct), 1 RCA\u003cbr\u003e \nPower output, 8Ω (1 kHz @ 1% THD+N)  1.1 kW\u003cbr\u003e \nPower output, 4Ω (1 kHz @ 1% THD+N)  1.5 kW\u003cbr\u003e \nPower output, 2Ω (1 kHz @ 1% THD+N)  2 kW\u003cbr\u003e \nOutputs  metal binding posts \u003cbr\u003e\nFrequency response  10 Hz to 100 kHz, +1\/-0.5 dB\u003cbr\u003e \nGain  32 dB \u003cbr\u003e\nTHD+N (1 kHz @ rated power)  Less than 0.05% \u003cbr\u003e\nOutput impedance  0.05Ω \u003cbr\u003e\nDamping factor (8Ω load)  150 \u003cbr\u003e\nInput impedance  10KΩ unbalanced, 20KΩ balanced \u003cbr\u003e\nOutput noise  Less than 500 µV, -100 dB @ 250 watts \u003cbr\u003e\nWeight  220 lbs\/100 kg \u003cbr\u003e\nDimensions  13\" \/ 330.2mm x 19\" \/ 482.6mm x 32\" \/ 812.8mm (hwd) \n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57409594523980,"sku":"CONSTAUDIOREFHERCULES2","price":70833.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Reference-Series-Hercules-2-Mono.jpg?v=1777489209"},{"product_id":"constellation-audio-performance-series-centaur-ii-mono-power-amplifier","title":"Constellation Audio Performance Series Centaur II Mono Power Amplifier","description":"New power supply with 3 times the capacitance. Higher bias current for extended Class A operation. 250 watts per channel into 8 ohms, 800 into 2 ohms. Fully discrete balanced bridged circuitry for extraordinary fidelity. Larger, deep-fin heat sink for efficient cooling and outstanding reliability\u003cbr\u003e\u003cbr\u003e\n\nThink of Centaur II as a state-of-the-art race car with an upgraded engine. The amplification circuits are essentially the same as in the original Centaur, but the power supply is radically improved. Supply capacitance is now tripled, with 18 10,000-microfarad capacitors replacing the original six. With three times as much stored energy on tap, Centaur II now achieves even stronger deep bass response and more dramatic dynamics.\u003cbr\u003e\u003cbr\u003e\n\n \n \n\n\nTo make the most of Centaur II's expanded energy stores, we added a larger heat sink with deeper fins. With this additional cooling efficiency, we were free to raise bias current by 25 percent. The amplifier now spends more time running in Class A, which means less crossover distortion and better retrieval of even the most minuscule musical details.\u003cbr\u003e\u003cbr\u003e\n\nThe new chassis is deeper and 40 percent heavier than the original. Yet the core circuitry, which made the original Centaur one of the world's most acclaimed amplifiers, remains the same. The concept, created by our \"dream team\" of audio engineers, was to combine multiple small, single-ended amplifier modules to achieve the power of a large amplifier. This gives us the delicacy and detail of a smaller amplifier with the power and dynamics of a large amp.\u003cbr\u003e\u003cbr\u003e\n\nPerfectly balanced circuitry\u003cbr\u003e\n Centaur II uses the same balanced bridged circuit topology found in all Constellation Audio amplifiers. The fully complementary design uses separate amplifiers for the positive and negative halves of the signal, ensuring the lowest possible noise and the best possible frequency response. \nOther complementary designs use different types of transistors to amplify the positive and negative halves of the incoming audio, resulting in an imbalanced signal. Centaur II instead uses only N-type output transistors. Along with other circuit refinements, the all-N-type design results in an essentially perfect signal balance – and fidelity exceeded only by our own Hercules II amplifers.\u003cbr\u003e\u003cbr\u003e\n\nSuch perfect balance in an amplifier benefits the listener only if the incoming signal is perfectly balanced. To this end, Centaur II's input stage is the same Line Stage Gain Module found in the Virgo preamp. Like the rest of the amplifier, this stage is fully complementary, with separate circuits for positive and negative halves of the signal. By using hand-selected, low-noise FETs and servo circuits, the Line Stage Gain Module brings any incoming signal into essentially perfect positive\/negative balance. Customers who own Constellation Audio preamps may use the Constellation Link interface to bypass the Centaur II's gain module.\u003cbr\u003e\u003cbr\u003e\n\n \n\n \n\nSeemingly endless power\u003cbr\u003e\n Centaur II's incomparable audio circuitry would achieve little without a clean, abundant source of power. This is why we used a 1,600-watt, custom-wound toroidal transformer with separate windings for the left and right channels. Each channel effectively has its own source of power, so high demands on one do not affect the other. Fully regulated supplies for all line-level circuits eliminate interference from outside sources.\u003cbr\u003e\u003cbr\u003e\n\nThe power supply's ample current allows Centaur II to drive any speaker, even the most exotic full-range models. The 250-watt-per-channel rating at 8 ohms doubles to 500 watts at 4 ohms. At 2 ohms, an impedance few amplifiers can handle, Centaur II delivers a staggering 800 watts per channel. Even at such high output levels, the modular amplifier design is inherently stable; unlike many amplifiers, it does not need a Zobel network at the output to damp high frequencies.\u003cbr\u003e\u003cbr\u003e\n\nThanks to the new deep-fin heat sinks and the air flow provided by hundreds of large ventilation holes in the sides of the chassis, Centaur II runs cool, placing minimum stress on its output transistors and driver circuits. Push it as hard as you like and it answers with impeccable fidelity no matter how demanding the speakers, the program material or the volume.\u003cbr\u003e\u003cbr\u003e\n\nA substantial refinement to an extraordinary amp\u003cbr\u003e\n Centaur II's greatly expanded power supply capacitance and heat sink capacity take our revolutionary amplifier technologies to even greater heights. Centaur II builds on the original Centaur's signature blend of musicality and muscle with improved deep bass performance; the greater detail and smoother textures of extended Class A operation; and dynamics that are, quite literally, staggering. No matter what you expect from a stereo amplifier, Centaur II can deliver far more.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\nInputs   2 XLR (1 for Constellation Link), 1 RCA \u003cbr\u003e\nOutputs   metal binding posts \u003cbr\u003e\nPower output per channel, 8Ω (1 kHz @ 1% THD+N)   250 watts \u003cbr\u003e\nPower output per channel, 4Ω (1 kHz @ 1% THD+N)   500 watts \u003cbr\u003e\nPower output per channel, 2Ω (1 kHz @ 1% THD+N)   800 watts \u003cbr\u003e\nFrequency response   10 Hz to 100 kHz, +1\/-0.5 dB \u003cbr\u003e\nGain   14dB (Constellation Direct)\/26 dB Balanced \u0026amp; RCA \u003cbr\u003e\nTHD+N (1 kHz @ rated power)   Less than 0.05% \u003cbr\u003e\nOutput impedance   0.05Ω \u003cbr\u003e\nDamping factor (8Ω load)   160 \u003cbr\u003e\nInput impedance   10KΩ unbalanced, 20KΩ balanced \u003cbr\u003e\nOutput noise   Less than 70 µV, 500 kHz BW, -116 dB @ 250 watts \u003cbr\u003e\nWeight   130 lbs \/ 48.5 kg \u003cbr\u003e\nDimensions   18.75 x 11.5 x 24.25 in (whd)\n 47.6 x 29.2 x 61.6 cm (whd) \n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57412680843596,"sku":"CONAUDIOPERFCENTAUR2MONO","price":44998.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Centaur-II-Mono.jpg?v=1777536077"},{"product_id":"constellation-audio-inspiration-series-integrated-1-0","title":"Constellation Audio Inspiration Series Integrated 1.0","description":"Constellation Audio, manufacturer of world-class solid-state electronics, is pleased to announce the debut of the Constellation Audio Inspiration 1.0 INTEGRATED Amplifier  at CES 2015. As the newest member of Constellation Audio’s most affordable Inspiration Series, the Constellation Audio INTEGRATED 1.0 joins its preamplifier and amplifier line-mates in delivering the performance that is expected from Constellation Audio at a more affordable price. With its ability to deliver 100 wpc into 8 Ohms (and twice that into 4), a full array of balanced and single-ended inputs and outputs, and a preamplifier output, the Constellation Audio Inspiration 1.0 INTEGRATED Amplifier  is destined to become the value leader in its category.\u003cbr\u003e\u003cbr\u003e\n\nGiven its pedigree, one would expect great performance from the Constellation Audio Inspiration 1.0 INTEGRATED Amplifier – and it more than delivers! Designed by the same  renowned Constellation Audio “dream team” that has designed the awardwinning Reference Series, Performance Series, and Inspiration Series components, the INTEGRATED 1.0 benefits from shared circuit topologies and designs that are used in those components.\u003cbr\u003e\u003cbr\u003e\n\nThe Constellation Audio Inspiration 1.0 INTEGRATED Ampliifer essentially combines the preamplifier section of the Inspiration PREAMP 1.0 and one-half of the power of the Inspiration STEREO 1.0 on a single chassis.\u003cbr\u003e\u003cbr\u003e\n\nConstellation Audio’s legendary attention to detail is evident down to the custom-designed binding posts used on the INTEGRATED 1.0. If significantly more power is required, the preamp outputs provide the ability to connect to larger amplifiers such as the Inspiration MONIO 1.0s. Aesthetically, the “dream team” designed casework bears a strong family resemblance to its more expensive siblings. Like all Constellation Audio components, the INTEGRATED 1.0 is 100% manufactured at their factory in California.","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57412843241804,"sku":"CAUDIOINSPSERIESINT1.0","price":14998.33,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Integrated-1.0.jpg?v=1777537261"},{"product_id":"constellation-audio-revelation-series-andromeda","title":"Constellation Audio Revelation Series - Andromeda","description":"Andromeda\u003cbr\u003e\u003cbr\u003e\n\nJohn Curl-designed phono circuitry\u003cbr\u003e\nMC loading adjustable with 1-ohm precision\u003cbr\u003e\nDual-chassis design with separate power supply\u003cbr\u003e\nSuspended circuit boards for maximum vibration reduction\u003cbr\u003e\nThick aluminum chassis panels to block EM and RF interference\u003cbr\u003e\u003cbr\u003e\n\n\n\n\u003cb\u003eAccessibility for a larger audience\u003c\/b\u003e\u003cbr\u003e\n\nThe “dream team” of the world’s finest audio engineers was thrilled with the results they heard from their Reference Series Orion and Performance Series Perseus phono preamps. They loved the incomparable clarity and detail, as well as the flexibility these preamps gave them to get the best possible sound from their favorite cartridges. They did, however, express the wish that more people could hear the results of their work. So when they talked about creating the Revelation line, they knew they should include a phono preamp. The result is Andromeda, a phono pre that distils the circuits, construction techniques and features they pioneered with Orion and Perseus into a model that is somewhat more accessible to a larger audience.\u003cbr\u003e\u003cbr\u003e\n\n\n\u003cb\u003eAn ideal solution.\u003c\/b\u003e\u003cbr\u003e\n\nAs before, their team started with an RIAA EQ circuit created by John Curl, the world’s best-known phono preamp designer. As before, they added a fully balanced output stage built with low-noise field-effect transistors (FETs). And as before, they used a dual-mono power supply in a separate chassis. The main differences are that Andromeda has fewer inputs and eliminates the EQ curve adjustments found on Orion and Perseus. It’s the ideal solution for those with simpler vinyl playback setups using only couple of tonearms or turntables.\u003cbr\u003e\u003cbr\u003e\n\n\n\u003cb\u003ePerfect, precise adjustments\u003c\/b\u003e\u003cbr\u003e\n\nIncreasingly, vinyl enthusiasts are exploring a wider variety of cartridges and also experimenting by going beyond the cartridge manufacturers’ recommended settings. For these adventurous audiophiles, Andromeda will be a godsend.\u003cbr\u003e\u003cbr\u003e\n\nFor the most important cartridge loading adjustment—setting the load impedance of moving-coil cartridges, they have provided controls that allow settings with ultra-precise 1-ohm steps, from 0 to 999 ohms. Settings for each channel and each MC input can be seen and stored independently through Andromeda’s front LCD touchscreen.\u003cbr\u003e\u003cbr\u003e\n\nLoading may also be adjusted for moving-magnet cartridges. Load impedance may be set to 10, 33 or 47 kilohms, and load capacitance to 0, 100 or 200 picofarads.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eThe ideal phono circuit\u003c\/b\u003e\u003cbr\u003e\n\nAt Andromeda’s core is a phono EQ circuit engineered by John Curl, for decades famed as the world’s best phono preamp designer. They combined this musically refined circuit with a technically refined output stage based on the fully balanced Line Stage Gain Modules found in all of their award-winning line stage preamps. They build these circuits using FETs selected specifically for their outstanding, ultra-low-noise performance.\u003cbr\u003e\u003cbr\u003e\n\nThus, not only is the signal from the cartridge perfectly equalized, the exceptional transparency of their circuitry assures that even extreme low-level microdetails from the best pressings make it all the way from the stylus to your speakers.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eSuperior vibration control and isolation\u003c\/b\u003e\u003cbr\u003e\n\nAudio signals from moving-coil cartridges can be as low as 0.05 percent of what might be expected from a CD player or DAC. Because these signals are so low in level, they are especially susceptible to interference and vibration. Vibrations can create small fluctuations in the value of passive components, which produce microphonics—in which the vibration is turned into an audio signal that mixes with the music. In Andromeda, their “dream team” took great pains to prevent these problems from affecting what you hear.\u003cbr\u003e\u003cbr\u003e\n\nAndromeda’s circuit boards mount on a thick metal plate that “floats” on a suspension made from soft, pliable material. This material damps any ground-borne vibration that makes it through the chassis. The chassis itself is built on heavy, machined aluminum slabs that are thick enough to block 50\/60 Hz electromagnetic radiation as well as radio-frequency signals. Steel buttresses join the panels, locking them together using a system similar to the tongue-in-groove technique used in fine woodworking.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eTriple-transformer, dual-mono power supply\u003c\/b\u003e\u003cbr\u003e\n\nAndromeda’s power supply is one of the best ever used in a phono preamp. They build it into a completely separate chassis which, like the preamp section, is constructed using thick, machined aluminum panels to minimize interference. Inside the supply are individual R-core audio-grade transformers assigned to the left and right channels, plus an EI-type transformer to power Andromeda’s control circuits. The dual-mono supply prevents activity in one channel from affecting the other channel, and thus maintains all the stereo imaging and soundstaging in the original recording.\u003cbr\u003e\u003cbr\u003e\n\nDedicated vinylphiles can opt for the Revelation Series DC filter, which adds additional storage and filtration to the already impressive componentry in Andromeda’s stock power supply. The added components improve dynamics and reduce the noise floor from the power supply even further.\u003cbr\u003e\u003cbr\u003e\n\nWhile Andromeda does omit a few features and inputs found on its brothers in the Reference and Performance Series, it retains what most vinyl enthusiasts demand: pristine, quiet, musical sound quality with enough flexibility to achieve maximum performance from their favorite cartridge, whatever it may be.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\n\nInputs:\n\n2 stereo XLR \u0026amp; 2 stereo RCA\u003cbr\u003e\n\n\nOutputs:\n\n1 stereo XLR, 1 stereo RCA\u003cbr\u003e\n\nGain:\n\n65 dB max (Balanced \u0026amp; Unbalanced)\u003cbr\u003e\n\n\nOutput noise:\n\n-96 dB re 2V output, 20 Hz to 20 kHz\u003cbr\u003e\n\n\nTHD+N:\n\n\n \u0026lt; 0.008% 10Hz - 20kHz\u003cbr\u003e\n\n\nFrequency response:\n\n+\/-0.10db 10Hz - 20kHz\u003cbr\u003e\n\n\nOutput impedance:\n\n \u0026lt; 50Ω (Balanced \u0026amp; Unbalanced)\u003cbr\u003e\n\n\nLoad impedance:\n\n5Ω to 1000Ω, MC inputs\n 10KΩ to 47KΩ (MM input)\n 0,100 or 200 pF, selectable (MM input)\u003cbr\u003e\n\n\nEQ curve:\n\nRIAA\u003cbr\u003e\n\n\nWeight:\n\n\n45 lbs\/20.4 kg (preamp)\n\n22 lbs\/10 kg (power supply)\u003cbr\u003e\n\n\nDimensions (W x H x D):\n\n\nPreamp: 17 x 5.25 x 15 in (whd)\n 43.2 x 13.3 x 38.1 cm (whd)\u003cbr\u003e\n\n\nPower supply: 17 x 2.75 x 14.5 in (whd)\n 43.2 x 7 x 36.8 cm (whd)\n\n\n\n\n\n\n\n\n","brand":"Constellation Audio","offers":[{"title":"Constellation Audio Revelation Series - Andromeda","offer_id":57413630591308,"sku":"CONSTELLATIONAUDIOANDROMEDA","price":19998.33,"currency_code":"GBP","in_stock":true},{"title":"Constellation Audio Revelation Series - DC Filter For Andromeda","offer_id":57423052439884,"sku":"CONSTELAUDIOREV-DCFILTERANDROMEDA","price":6000.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Andromeda.jpg?v=1777545134"},{"product_id":"constellation-audio-revelation-series-pictor","title":"Constellation Audio Revelation Series - Pictor","description":"PICTOR\u003cbr\u003e\u003cbr\u003e\n\nSeparate dual mono + control power supply\u003cbr\u003e\nDual mono, fully balanced preamp circuitry\u003cbr\u003e\nCircuit boards suspended to guard against vibration\u003cbr\u003e\nLine Stage Gain Module circuit for ideal positive\/negative signal balance\u003cbr\u003e\nDense, machined aluminum chassis panels joined with steel buttresses\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eSimplicity and sound quality.\u003c\/b\u003e\u003cbr\u003e\n\nPictor is an elemental version of our acclaimed Performance Series Virgo III line stage. It uses the same core circuit topology as Virgo III, and a few minor changes aside, the same separate power supply. The main difference is that Pictor has fewer inputs. For simpler systems, Pictor is the perfect choice: simplicity and sound quality distilled into a single product.\u003cbr\u003e\u003cbr\u003e\n As with all of our preamps, Pictor uses our Line Stage Gain Module, a unique design that uses a servo circuit to monitor and maintain the balance between the positive and negative halves of the audio signal. When Pictor is used with a Constellation power amplifier, the Constellation Link may be employed, maximizing sound quality by bypassing the power amplifier’s gain stage.\u003cbr\u003e\u003cbr\u003e\n Pictor mirrors Virgo III’s convenience and refreshingly simple design. A front touchscreen with elegant, easy-to-read fonts accesses all adjustments. Frequently used controls are also available on a machined aluminum remote. A home theater bypass mode is provided for seamless integration with surround-sound systems.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eTriple-transformer, separate power supply\u003c\/b\u003e\u003cbr\u003e\n\nPictor’s power supply resides in a separate chassis made from machined aluminum slabs, connected to the preamp section by three high-current PCOCC cables tipped with Hypertronics connectors originally developed for aerospace. Keeping the power supply seprate shields the audio cirucitry from the electromagetic fields generated by the transformers.\u003cbr\u003e\u003cbr\u003e\n\nInside the chassis are three separate power supplies, one each for left channel, right channel and control circuits. This dual-mono design provides separate R-core transformers for left and right channels. Thus, extreme demands in one channel do not affect the other, so the music is reproduced with all the natural imaging and soundstaging of the original recording. A third EI-type transformer powers Pictor’s control circuits.\u003cbr\u003e\u003cbr\u003e\n\nOur optional DC power filter augments the already impressive power storage and filtration in the stock power supply. The added peak output and filtration from the DC filter allows Pictor to achieve even better dynamics with even lower power supply noise.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eLine Stage Gain Module for perfect signal balance\u003c\/b\u003e\u003cbr\u003e\n\nThe core of Pictor is the Line Stage Gain Module circuit originally developed for our Reference Series Altair line stage. We have found no better method of amplifying and buffering line-level signals. It is a fully balanced topology, with separate mirror-imaged circuits to amplify the positive and negative halves of the audio signal. To assure clear reproduction of even the subtlest details, we use a servo circuit that continuously monitors and maintains the positive\/negative signal balance. Use of ultra-low-noise field-effect transistors (FETs) assures that Pictor’s outputs emit pure music and nothing else.\u003cbr\u003e\u003cbr\u003e\n\nBecause Pictor’s outputs achieve essentially perfect balance, they can be connected to Direct inputs of our power amplifiers. This forms the Constellation Link, which further improves fidelity by bypassing the amplifier’s own Line Stage Gain Module.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003ePhysically isolated audio circuits\u003c\/b\u003e\u003cbr\u003e\n\nPictor’s audio circuit boards mount on a thick metal plate, which is “floated” using soft, pliable isolators. This isolation prevents ground-borne vibration from reaching the audio circuits. Vibration control in line-level audio components is especially important because the vibrations can create small fluctuations in the values of passive components. These fluctuations can produce an audio signal of their own, which pollutes the music signal and obscures detail. Thanks to our careful layout and construction, these issues are never a concern with Pictor.\u003cbr\u003e\u003cbr\u003e\n\nKey chassis components are machined from think aluminum slabs. The sheer mass of the metal makes it harder for vibrations to affect Pictor, and the unusually thick panels are capable of blocking any electromagnetic or radio-frequency interference commonly encountered in a home.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eElegant, friendly design\u003c\/b\u003e\u003cbr\u003e\n\nAll of Pictor’s features and adjustments can be controlled through a large, easy-to-read LCD touchscreen on the front panel. Even Pictor’s most advanced features, such as input gain preset and home theater bypass, can be accessed with just a few touches. We chose the touchscreen fonts not only because they look great, but also because they are easy to read from across a room.\u003cbr\u003e\u003cbr\u003e\n\nPictor’s most commonly used controls, such as volume, input selection and mute, can also be accessed through its machined aluminum remote, which echoes the style and elegance of the preamp itself.\u003cbr\u003e\u003cbr\u003e\n\nWe have noticed that many audiophiles are gravitating toward simpler systems, perhaps with just a turntable and a digital media server as sources. For them, Pictor may be the ideal preamp. Its sound quality is exceeded only by that of our Altair II and Virgo III preamps. Its versatility allows it to achieve maximum fidelity from any source. And its simplicity and ease of use make it a pleasure to use and hear every day.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\n\nInputs:\n\n3 XLR stereo, 3 RCA stereo, USB (for control)\u003cbr\u003e\n\n\nOutputs:\n\n2 XLR stereo, 2 RCA stereo, 12-volt trigger\u003cbr\u003e\n\n\nTHD+N:\n\n\n \u0026lt; 0.001%, 20 Hz - 20 kHz @ 2V out\n\n \u0026lt; 0.1%, 20 Hz - 20 kHz @ 10V out\u003cbr\u003e\n\n\nFrequency response:\n\n10 Hz to 100 kHz, ±0.5 dB\u003cbr\u003e\n\n\nSignal-to-noise ratio:\n\n \u0026gt; -105 dB, A-weighted\u003cbr\u003e\n\n\nInput impedance (balanced):\n\n20 KΩ\u003cbr\u003e\n\n\nInput impedance (unbalanced):\n\n10 KΩ\u003cbr\u003e\n\n\nOutput impedance:\n\n \u0026lt; 50Ω\u003cbr\u003e\n\n\nVolume control resolution:\n\n0.5 dB from 0dB to -90 dBFS\u003cbr\u003e\n\n\nWeight:\n\n\nPreamp: 45 lbs\/20.4 kg\n\nPower supply: 22 lbs\/10 kg\u003cbr\u003e\n\n\nDimensions (W x H x D):\n\n\nPreamp: 17 x 5.25 x 15 in (whd)\n 43.2 x 13.3 x 38.1 cm (whd)\u003cbr\u003e\n\nPower supply: 17 x 2.75 x 14.5 in (whd)\n 43.2 x 7 x 36.8 cm (whd)\n\n\n\n\n\n\n","brand":"Constellation Audio","offers":[{"title":"Constellation Audio Revelation Series - Pictor","offer_id":57413630689612,"sku":"CONSTAUDIOREV-PICTOR","price":19998.33,"currency_code":"GBP","in_stock":true},{"title":"Constellation Audio Revelation Series - DC Filter for Pictor","offer_id":57423052472652,"sku":"CONSAUDIOREV-DCFILTERPICTOR","price":6000.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Pictor.jpg?v=1777545138"},{"product_id":"constellation-audio-revelation-series-taurus-stereo-power-amplifier","title":"Constellation Audio Revelation Series - Taurus Stereo Power Amplifier","description":"Taurus stereo\u003cbr\u003e\u003cbr\u003e\n\nHigh power from a more compact chassis\u003cbr\u003e\nTwo massive toroidal power transformers\u003cbr\u003e\n250 watts per channel into 8 ohms, 500 into 4 ohms\u003cbr\u003e\nClassic Constellation Balanced Bridged amplifier circuitry\u003cbr\u003e\nLine Stage Gain Module with Direct mode for superior fidelity\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eA smaller chassis.\u003c\/b\u003e\u003cbr\u003e\n\nTaurus is something a little different for Constellation. In building their power amplifiers, they tended to focus purely on performance. But after their “dream team” of the world’s top audio engineers created the relatively compact Inspiration Stereo 1.0, they realized they could use some of the same construction techniques to create an exceptionally powerful amplifier in a chassis considerably smaller than that of our Performance Series Centaur III amplifier. And now -  Taurus, an amplifier that stands only 8.5 inches high but delivers 250 watts per channel into 8 ohms, and comfortably doubles that number into 4 ohms.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eThe heart of Taurus.\u003c\/b\u003e\u003cbr\u003e\n\nThe heart of Taurus is a pair of high-output toroidal power transformers. By splitting the duties up among two transformers, their “dream team” was able to reduce Taurus’s chassis size substantially, to the same height and width as the Inspiration Stereo 1.0. (Taurus’s chassis is a few inches deeper, though.) They also added substantially more storage capacitance to support Taurus’s higher power rating and to assure its dynamics are unrestrained even with demanding loads and high volumes.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003ePerfect balance from input to output\u003c\/b\u003e\u003cbr\u003e\n\nAlthough Taurus has a more compact form factor than their larger amps, it relies on the same technologies developed for their first amplifier, the Reference Series Hercules.\u003cbr\u003e\u003cbr\u003e\n\nThe audio signal chain starts with their Line Stage Gain Module, a fully balanced input stage that employs the same topology used in all of our preamps. Separate circuits are used to amplify the positive and negative halves of the audio signal, and a servo circuit constantly monitors and maintains an essentially perfect balance between the two. This preserves even the subtlest details in audiophile recording, which can be concealed if the positive\/negative balance is inaccurate. If a Constellation preamp is used, the Taurus’s Direct input can be connected to form the Constellation Link, which achieves maximum possible fidelity by bypassing the amplifier’s input stage.\u003cbr\u003e\u003cbr\u003e\n\nThe signal then travels to the Balanced Bridged amplification circuits, which use identical 125-watt, single-ended modules in combination. This unusual arrangement achieves two important goals. First, it gives Taurus the same delicate, musical sound of a small, single-ended amp, but of course with far superior power and dynamics. Second, because these single-ended modules use only NPN output transistors, the positive and negative halves of the signal are treated exactly the same. In a conventional amplifier, NPN transistors power the positive half of the signal while PNP transistors power the negative half. This difference can obscure the details that for many audiophiles are the most important part of a stereo presentation.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003ePractically limitless dynamics\u003c\/b\u003e\u003cbr\u003e\n\nTaurus’s dual toroidal power transformers and massive storage capacitor banks provide the necessary voltage and current to support its expanded power rating, and also to extend its dynamics. It can power even the largest, most demanding speakers to extremely loud levels while maintaining precise control of every note. Yet thanks to our Balanced Bridged design, Taurus always delivers the captivating musicality of a small, single-ended amplifier.\u003cbr\u003e\u003cbr\u003e\n\nThe output is rated at 250 watts into 8 ohms, increasing to 500 watts into 4 ohms and 800 watts into 2 ohms. Even when running at maximum output, Taurus remains completely stable because its modular design does not require a Zobel network at the output to filter out ultrasonic frequencies, a compromise many high-end amplifiers must employ to assure high-frequency stability.\u003cbr\u003e\u003cbr\u003e\n\nTo assure long service life for Taurus’s internal components, we use the same thermal management system proven in years of use with the world’s most demanding audiophiles. Heat from the output transistors passes into the amplifier’s massive, deep-fin heat sinks, which are cooled by consistent airflow through hundreds of large ventilation holes in the sides of the chassis. Thus, when you demand the most from Taurus, it always responds with maximum performance and fidelity.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eFriendly design, ferocious power\u003c\/b\u003e\u003cbr\u003e\n\nLarge amplifiers have been a Constellation hallmark since our founding, and for good reason: The finest speakers demand instantaneous, unrestrained delivery of power to sound their best. Now Taurus achieves the same standard in a design that can fit in more listening rooms and equipment racks. Taurus is the ideal way to get Constellation performance and power into systems where, for whatever reason, a foot-high power amplifier won’t quite fit.\u003cbr\u003e\u003cbr\u003e\n\nTechnical Specifications:-\u003cbr\u003e\u003cbr\u003e\n\n\nInputs:\n\n4 XLR (2 for Constellation Link), 2 RCA\u003cbr\u003e\n\n\nOutputs:\n\nmetal binding posts\u003cbr\u003e\n\n\nPower output:\n\n\n250 watts, Power output per channel, 8Ω (1 kHz @ 1% THD+N)\n\n500 watts, Power output per channel, 4Ω (1 kHz @ 1% THD+N)\u003cbr\u003e\n\n\nGain:\n\n32 dB\u003cbr\u003e\n\n\nOutput noise:\n\n \u0026lt; 500 μV, -100 dB @ 250 watts\u003cbr\u003e\n\n\nDamping factor (8Ω load):\n\n150\u003cbr\u003e\n\n\nTHD+N:\n\n\n \u0026lt; 0.05% (1 kHz @ rated power)\u003cbr\u003e\n\n\nFrequency response:\n\n10 Hz to 100 kHz, +1\/-0.5 dB\u003cbr\u003e\n\n\nInput impedance (balanced):\n\n200KΩ\u003cbr\u003e\n\n\nInput impedance (unbalanced):\n\n100KΩ\u003cbr\u003e\n\n\nOutput impedance:\n\n0.05Ω\u003cbr\u003e\n\n\nWeight:\n\n\n120 lbs \/ 54.4 kg\u003cbr\u003e\n\n\nDimensions (W x H x D):\n\n\n11.7 x 18.75 x 23.75 in\n\n297 x 476 x 603 mm\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57413630722380,"sku":"CONSTAUDIOREVTAURUSSTEREO","price":20831.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Taurus-Stereo.jpg?v=1777545143"},{"product_id":"constellation-audio-revelation-series-taurus-mono-power-amplifier","title":"Constellation Audio Revelation Series - Taurus Mono Power Amplifier","description":"Taurus mono\u003cbr\u003e\u003cbr\u003e\n\n\nHigh power from a more compact chassis\u003cbr\u003e\n\nTwo massive toroidal power transformers\u003cbr\u003e\n\n250 watts per channel into 8 ohms, 500 into 4 ohms\u003cbr\u003e\n\nClassic Constellation Balanced Bridged amplifier circuitry\u003cbr\u003e\n\nLine Stage Gain Module with Direct mode for superior fidelity\u003cbr\u003e\n\u003cbr\u003e\n\n\n \u003cb\u003eA smaller chassis.\u003c\/b\u003e\u003cbr\u003e\n\n\nTaurus is something a little different for Constellation. In building their power amplifiers, they tended to focus purely on performance. But after their “dream team” of the world’s top audio engineers created the relatively compact Inspiration Stereo 1.0, they realized they could use some of the same construction techniques to create an exceptionally powerful amplifier in a chassis considerably smaller than that of their Performance Series Centaur III amplifier. And now - Taurus, an amplifier that stands only 8.5 inches high but delivers 250 watts per channel into 8 ohms, and comfortably doubles that number into 4 ohms.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003cb\u003eThe heart of Taurus.\u003c\/b\u003e\u003cbr\u003e\n\n\nThe heart of Taurus is a pair of high-output toroidal power transformers. By splitting the duties up among two transformers, their “dream team” was able to reduce Taurus’s chassis size substantially, to the same height and width as the Inspiration Stereo 1.0. (Taurus’s chassis is a few inches deeper, though.) They also added substantially more storage capacitance to support Taurus’s higher power rating and to assure its dynamics are unrestrained even with demanding loads and high volumes.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003cb\u003ePerfect balance from input to output\u003c\/b\u003e\u003cbr\u003e\n\n\nAlthough Taurus has a more compact form factor than their larger amps, it relies on the same technologies developed for their first amplifier, the Reference Series Hercules.\u003cbr\u003e\n\u003cbr\u003e\n\n\nThe audio signal chain starts with their Line Stage Gain Module, a fully balanced input stage that employs the same topology used in all of their preamps. Separate circuits are used to amplify the positive and negative halves of the audio signal, and a servo circuit constantly monitors and maintains an essentially perfect balance between the two. This preserves even the subtlest details in audiophile recording, which can be concealed if the positive\/negative balance is inaccurate. If a Constellation preamp is used, the Taurus’s Direct input can be connected to form the Constellation Link, which achieves maximum possible fidelity by bypassing the amplifier’s input stage.\u003cbr\u003e\n\u003cbr\u003e\n\n\nThe signal then travels to their Balanced Bridged amplification circuits, which use identical 125-watt, single-ended modules in combination. This unusual arrangement achieves two important goals. First, it gives Taurus the same delicate, musical sound of a small, single-ended amp, but of course with far superior power and dynamics. Second, because these single-ended modules use only NPN output transistors, the positive and negative halves of the signal are treated exactly the same. In a conventional amplifier, NPN transistors power the positive half of the signal while PNP transistors power the negative half. This difference can obscure the details that for many audiophiles are the most important part of a stereo presentation.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003cb\u003ePractically limitless dynamics\u003c\/b\u003e\u003cbr\u003e\n\n\nTaurus’s dual toroidal power transformers and massive storage capacitor banks provide the necessary voltage and current to support its expanded power rating, and also to extend its dynamics. It can power even the largest, most demanding speakers to extremely loud levels while maintaining precise control of every note. Yet thanks to our Balanced Bridged design, Taurus always delivers the captivating musicality of a small, single-ended amplifier.\u003cbr\u003e\n\u003cbr\u003e\n\n\nThe output is rated at 250 watts into 8 ohms, increasing to 500 watts into 4 ohms and 800 watts into 2 ohms. Even when running at maximum output, Taurus remains completely stable because its modular design does not require a Zobel network at the output to filter out ultrasonic frequencies, a compromise many high-end amplifiers must employ to assure high-frequency stability.\u003cbr\u003e\n\u003cbr\u003e\n\n\nTo assure long service life for Taurus’s internal components, they use the same thermal management system proven in years of use with the world’s most demanding audiophiles. Heat from the output transistors passes into the amplifier’s massive, deep-fin heat sinks, which are cooled by consistent airflow through hundreds of large ventilation holes in the sides of the chassis. Thus, when you demand the most from Taurus, it always responds with maximum performance and fidelity.\u003cbr\u003e\n\u003cbr\u003e\n\n\n\u003cb\u003eFriendly design, ferocious power\u003c\/b\u003e\u003cbr\u003e\n\n\nLarge amplifiers have been a Constellation hallmark since our founding, and for good reason: The finest speakers demand instantaneous, unrestrained delivery of power to sound their best. Now Taurus achieves the same standard in a design that can fit in more listening rooms and equipment racks. Taurus is the ideal way to get Constellation performance and power into systems where, for whatever reason, a foot-high power amplifier won’t quite fit.\u003cbr\u003e\n\u003cbr\u003e\n\n\nTechnical Specifications:-\u003cbr\u003e\n\n\n\nInputs:\n\n2 XLR (1 for Constellation Link), 1 RCA\u003cbr\u003e\n\n\n\nOutputs:\n\nmetal binding posts\u003cbr\u003e\n\n\n\nPower output:\n\n\n500 watts, Power output per channel, 8Ω (1 kHz @ 0.05% THD+N)\n\n1000 watts, Power output per channel, 4Ω (1 kHz @ 0.05% THD+N)\u003cbr\u003e\n\n\n\nGain:\n\n32 dB\u003cbr\u003e\n\n\n\nOutput noise:\n\n \u0026lt; 500 μV, -100 dB @ 250 watts\u003cbr\u003e\n\n\n\nDamping factor (8Ω load):\n\n150\u003cbr\u003e\n\n\n\nTHD+N:\n\n\n \u0026lt; 0.05% (1 kHz @ rated power)\u003cbr\u003e\n\n\n\nFrequency response:\n\n10 Hz to 100 kHz, +1\/-0.5 dB\u003cbr\u003e\n\n\n\nInput impedance (balanced):\n\n200KΩ\u003cbr\u003e\n\n\n\nInput impedance (unbalanced):\n\n100KΩ\u003cbr\u003e\n\n\n\nOutput impedance:\n\n0.05Ω\u003cbr\u003e\n\n\n\nWeight:\n\n\n120 lbs \/ 54.4 kg\u003cbr\u003e\n\n\n\nDimensions (W x H x D):\n\n\n11.7 x 18.75 x 23.75 in\n\n297 x 476 x 603 mm\n","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57413631574348,"sku":"CONSTAUDIOREV-TAURUSMONO","price":20831.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Taurus-Mono.jpg?v=1777545147"},{"product_id":"constellation-audio-performance-series-centaur-ii-500-stereo","title":"Constellation Audio Performance Series - Centaur II 500 Stereo","description":"Centaur II 500 Stereo\u003cbr\u003e\u003cbr\u003e\n\nCentaur II 500 is an unexpected but very happy result of our upgrade from the original Centaur to Centaur II. When they designed the upgrade, our “dream team” of the world’s finest audio engineers ended up with an amplifier they knew could deliver far more than its rated power, if only the power transformer could provide enough voltage. As an experiment, they installed one of the transformers from our Reference Series Hercules II into a Centaur II Stereo chassis. The experiment worked even better than they imagined, producing Centaur II 500: a stereo amplifier with the same power rating as two Centaur II monoblocks.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eComplete control of any speaker\u003c\/b\u003e\u003cbr\u003e\n\nWith 500 watts per channel into 8 ohms, doubling to 1,000 watts per channel into 4 ohms, Centaur II 500 commands complete control of any speaker, allowing every speaker it is used with to achieve its best, most musical performance.\n Of course, a few changes were necessary to achieve this extraordinary power. While the number of power supply storage capacitors is the same, the maximum voltage of each capacitor increases by 30 percent in Centaur II 500. We did this in order to handle the higher rail voltages necessary for the higher power rating, but it has the nice additional benefit of further increasing total energy storage.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eA fully optimized design\u003c\/b\u003e\u003cbr\u003e\n\nOne thing our “dream team” did not, fortunately, have to change is the size of the chassis. Centaur II’s overbuilt output stages and upgraded heat sinks easily handle the increased demands presented by the doubled power rating, so Centaur II 500 effectively delivers the power of two Centaur IIs from one Centaur II chassis.\u003cbr\u003e\u003cbr\u003e\n The end result is a fully optimized design in which every component works in concert, with performance uncompromised by any other component’s limitations. Centaur II 500 effortlessly delivers the most extreme dynamic peaks, even when used with the world’s largest, most demanding speakers.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eA perfect balance\u003c\/b\u003e\u003cbr\u003e\n\nDespite its elevated power rating, Centaur II 500 preserves all the detail and delicacy of our other amplifiers—and indeed, all the detail and delicacy of the most revered single-ended amplifiers. This is because Centaur II 500 is a single-ended amplifier. Our unique Balanced Bridged topology combines numerous 125-watt single-ended amplifier modules in one amplifier, so it sounds like a small single-ended amp, yet its muscle matches or exceeds that of practically any audiophile amplifier (Hercules II excepted).\u003cbr\u003e\u003cbr\u003e\n\n Centaur II 500’s incomparable output stage design and exceptionally robust power supply can reach their potential only when they receive an audio signal that is equally superb. This is why, for Centaur II 500’s input stage, we used the same Line Stage Gain Module topology found in all of our preamps. The Line Stage Gain Module uses ultra-low-noise FETs and a unique servo circuit to maintain an essentially perfect balance between the positive and negative halves of the audio signal, even if the signal from the source device is not perfectly balanced.\u003cbr\u003e\u003cbr\u003e\n\n If you use Centaur II 500 with any Constellation preamp, you can bypass the Line Stage Gain Module by using the amplifier’s Direct input, which forms the Constellation Link. Because the preamp has its own Line Stage Gain Module, the one in the amp is not needed. Thus, it can be removed from the signal chain to increase overall system transparency to a degree conventional preamp\/amplifier combinations cannot equal.\u003cbr\u003e\u003cbr\u003e\n\n When Centaur II 500 is added to an audio system, compromise is removed. No matter what speakers are used, or what music is played, Centaur II 500 will always be up to the dynamic demands, while reproducing all the musicality and detail of the very finest high-resolution recordings.\u003cbr\u003e\u003cbr\u003e\n\n\n\u003cb\u003eMassive toroidal transformer\u003c\/b\u003e\u003cbr\u003e\n\nCentaur II 500 borrows one of the colossal power transformers used in the Reference Series Hercules II, our flagship amplifier. The transformer’s size allows it to deliver incredible peak output, while its toroidal design keeps its magnetic field well-confined.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003e500 watts per channel into 8 ohms\u003c\/b\u003e\u003cbr\u003e\n\nCentaur II 500’s huge transformer and increased supply capacitor voltage achieve output power of 500 watts per channel into 8 ohms, doubling to 1,000 watts into 4 ohms. Even 2-ohm loads are no problem for Centaur II 500. Whatever speakers you own, Centaur II 500 lets them give their best possible performance.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eDouble the power, same size\u003c\/b\u003e\u003cbr\u003e\n\nBecause Centaur II’s output stages and heat sinks were so heavily overbuilt, our engineering “dream team” was able to double the power for Centaur II 500 while keeping the chassis size the same.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eBalanced Bridged output stage\u003c\/b\u003e\u003cbr\u003e\n\nLike all of our amplifiers, Centaur II 500 is built from multiple single-ended modules using only N-type output transistors. This unique approach delivers the “best of both worlds”: all the finesse and delicacy of the finest small, single-ended amplifiers with the awesome power of the largest audiophile amplifiers. The fully balanced design, with separate circuits for the positive and negative halves of the signal, doubles the slew rate and broadens the frequency response, making Centaur II 500 ideal for reproducing DSD and high-sampling-rate PCM.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eLine Stage Gain Module input stage\u003c\/b\u003e\u003cbr\u003e\n\nMaximum fidelity of all incoming signals, even unbalanced ones, is assured by Centaur II 500’s Line Stage Gain Module input stage, the same circuit used in our preamps. The module’s unique servo design maintains a perfect balance between the positive and negative halves of the audio signal, preserving even the tiniest details in the music without distortion or coloration.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eAll-discrete, fully balanced audio circuitry\u003c\/b\u003e\u003cbr\u003e\n\nCentaur II 500’s circuitry is fully balanced from input to output, with separate circuits used for the positive and negative halves of the audio signal. Only discrete transistors and other components are used in the audio path; we do not compromise by passing the signal through integrated circuits.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eConstellation Link balanced interface\u003c\/b\u003e\u003cbr\u003e\n\nBecause our preamps already have Line Stage Gain Modules, Centaur II 500 allows you to bypass its Line Stage Gain Module using the amplifier’s Direct input, which forms the Constellation Link. By taking one gain stage out of the chain, audio transparency is elevated even further.\u003cbr\u003e\u003cbr\u003e\n\n\u003cb\u003eInherently stable design\u003c\/b\u003e\u003cbr\u003e\n\nOur Balanced Bridged output stage design is inherently stable, so it does not require a Zobel output at its network to damp high-frequency energy, as many high-end power amps do. This means fewer components and a wider frequency response.\u003cbr\u003e\u003cbr\u003e\n\n\n\n\n\n\n\nTechnical Specifications:-\u003cbr\u003e\n\nInputs:\n\n2 XLR (1 for Constellation Link), 1 RCA, 3.5mm jack for 12V trigger, USB control jack\u003cbr\u003e\n\n\nOutputs:\n\nmetal binding posts\u003cbr\u003e\n\n\nPower output:\n\n\n500 watts per channel, 8Ω (1 kHz @ 0.05% THD+N)\n\n1,000 watts per channel, 4Ω (1 kHz @ 0.05% THD+N)\n\n1,600 watts per channel, 2Ω (1 kHz @ 0.05% THD+N)\u003cbr\u003e\n\n\nGain:\n\n14 dB (Constellation Direct), 26 dB (balanced \u0026amp; RCA)\u003cbr\u003e\n\n\nOutput noise:\n\n \u0026lt; 70 µV, 500 kHz BW, -116 dB @ 250 watts\u003cbr\u003e\n\n\nDamping factor (8Ω load):\n\n160\u003cbr\u003e\n\n\nTHD+N:\n\n\n \u0026lt; 0.05% (1 kHz @ rated power)\u003cbr\u003e\n\n\nInput impedance (balanced):\n\n200 KΩ\u003cbr\u003e\n\n\nInput impedance (unbalanced):\n\n100 KΩ\u003cbr\u003e\n\n\nOutput impedance:\n\n0.05 Ω \u003cbr\u003e\n\n\nWeight:\n\n\n150 lbs \/ 68 kg\u003cbr\u003e\n\n\nDimensions (W x H x D):\n\n\n18.75 x 11.5 x 24.25 in\n 476 x 292 x 616 mm","brand":"Constellation Audio","offers":[{"title":"Default Title","offer_id":57413631934796,"sku":"CAUDIOPERFCENTAURII500STEREO","price":58331.67,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Constellation-Audio-Centaur-II-500-Stereo.jpg?v=1777545152"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/collections\/constellation-audio-logo_b131eb0e-dd35-47e5-902d-758d58ad9494.jpg?v=1777394262","url":"https:\/\/www.stoneaudio.co.uk\/collections\/constellation-audio.oembed","provider":"Stone Audio","version":"1.0","type":"link"}