{"product_id":"trichord-diablo-phono-stage","title":"Trichord Diablo Phono Stage","description":"The Diablo is a high performance, audiophile grade phono amplifier, designed for ultimate transparency and realism. It will maximise the performance of a wide range of phono cartridges from ultra-low output Moving Coils to high output Moving Magnets.\u003cbr\u003e\u003cbr\u003e\n\nAs with the Dino, the Diablo will accept a wide variety of MM and MC cartridges with adjustments for amplifier gain and cartridge loading on the underside of the unit.\u003cbr\u003e\u003cbr\u003e\n\nFour high speed low noise voltage regulators effectively turn this into a dual mono design in one box.\u003cbr\u003e\u003cbr\u003e\n\nThe prime power supply for this unit is the ‘Never Connected’ PSU. It is however available with an in-line toroidal supply as a starting option.\u003cbr\u003e\u003cbr\u003e\n\nThe Diablo is user adjustable with a set of four DIP switches on the underside of the unit. These switches allow for adjustment of cartridge loading and gain setting.\u003cbr\u003e\u003cbr\u003e\n\nThe circuit is signal non-inverting and constructed using high performance, audio grade bipolar and JFET operational amplifiers from Analog Devices and Linear Technology. Metal oxide resistors and ultra low impedance capacitors throughout for lowest possible noise.\u003cbr\u003eV\n\nThe RIAA equalisation network is part passive and part active. The capacitors and resistors used in this stage are very close tolerance audiophile types.\u003cbr\u003e\u003cbr\u003e\n\nFour ‘state of the art’ ultra low impedance, low noise wide-band voltage regulator circuits are employed to power both channels and are largely responsible for the high sonic performance of the Diablo.\u003cbr\u003e\u003cbr\u003e\n\nThe non-ferrous cabinetry is made of aluminium, a design that reduces eddy current propagation that can affect sound reproduction in subtle but deleterious ways.\u003cbr\u003e\u003cbr\u003e\n\nTwo versions of power supply are available for the Diablo, the basic toroidal transformer power supply and the fully blown ‘Never Connected’ PSU.\u003cbr\u003e\u003cbr\u003e\n\n\n\nDiablo Power Supply Options:-\u003cbr\u003e\u003cbr\u003e\n\n\nIncrease Performance of your Diablo as you step up from the Toroidal Supply to the ‘Never Connected’ PSU\u003cbr\u003e\n\n\nThere are two options available to power the Diablo – the Toroidal AC supply and the ‘Never Connected PSU’ DC supply.\u003cbr\u003e\n\nAs you go up from the AC supply to the ‘Never Connected’ you benefit by a major increase in audio performance.\u003cbr\u003e\n\nBoth power supplies are in separate boxes to keep noise and hum levels as far away as possible from the sensitive audio circuits and are available in the following options:\u003cbr\u003e\n◾230V operation with UK or European mains plug\u003cbr\u003e\n◾115V operation with USA style mains plug\u003cbr\u003e\u003cbr\u003e\n\nTOROIDAL AC POWER SUPPLY\u003cbr\u003e\u003cbr\u003e\n\nSmall Toroidal PSU for Dino\u003cbr\u003e\n\nThe Toroidal Power Supply option is provided as a low cost introduction.\u003cbr\u003e\n\nPerformance level will be more than adequate for many users, but you can upgrade at any time to the ‘Never Connected’ PSU.\u003cbr\u003e\n\nThe ABS molded housing of the Toroidal power supply contains an in-line low noise 40VA transformer. AC current is fed to the Dino where it is rectified to DC and regulated with two high performance, wide bandwidth Super Regulators.\u003cbr\u003e\u003cbr\u003e\n\nTHE ULTIMATE POWER SUPPLY FOR THE DIABLO - THE NCPSU\u003cbr\u003e\u003cbr\u003e\n\nThe NCPSU (Never Connected Power Supply Unit) has completely different electronics to any conventional dc power supply. Instead of an over sized toroidal transformer, there is a PCB mounting variety followed by the revolutionary noise reduction circuitry that is called ‘Never Connected’.\u003cbr\u003eV\n\n\nAlthough the regulation circuit is physically connected to the incoming mains, it is disconnected electronically. A monitoring circuit detects the portion of the sine wave that is charging the first of a pair of electrolytic capacitors. Once this first capacitor is fully charged, the diode bridge rectifier turns off and a MOSFET switching circuit transfers the charge from the first cap to the second. This cycle is repeated continuously.\u003cbr\u003eV\n\nAt no point in time is the regulation circuitry electrically connected to the incoming rectified mains – hence the term ‘Never Connected’. The overall result is a large and measurable reduction in mains borne noise.\u003cbr\u003e\u003cbr\u003e\n\nThis dramatic reduction of mains borne noise enables the Diablo phono circuit to give of its very best.\u003cbr\u003e\u003cbr\u003e\n\n\nTechnical Specifications:-\u003cbr\u003e\n\nSpecifications for the Diablo Phono Stage\u003cbr\u003e\n\nStereo phono amplifier for Moving coil and Moving magnet cartridges. Part active, part passive RIAA equalisation.\u003cbr\u003e\n\nSwitch Selectable Cartridge Resistance Loading (DIP 1 and 2)\u003cbr\u003e\n\n33 ohms  For Moving Coil cartridges\u003cbr\u003e\n100 ohms  For Moving Coil cartridges \u003cbr\u003e\n1000 ohms  For Moving Coil cartridges \u003cbr\u003e\n47,000 ohms  For Moving Magnet and some Moving Coil cartridges \u003cbr\u003e\u003cbr\u003e\n\n \n\n \n\n \n\nSwitch Selectable Capacitance Loading (DIP 1 and 2)\u003cbr\u003e\n\n100pF  For Moving Magnet and Moving Coil cartridges\u003cbr\u003e \n1000pF  For Moving Coil cartridges\u003cbr\u003e\u003cbr\u003e \n\n \n\n \n\nPlease refer to your cartridge specification for correct loading settings.\u003cbr\u003e\n\n\nSwitch Selectable Gain (DIP 3 and 4)\u003cbr\u003e\n\nCartridge Type  Sensitivity \u003cbr\u003e\n   \nMC Very Low:  100uV to 250uV (74dB) \u003cbr\u003e\nMC Low:  250 to 400uV (70dB) \u003cbr\u003e\nMC Normal:  400uV to 1mV (63dB) \u003cbr\u003e\nMC High\/MM Low:  1 to 3mV (52dB) \u003cbr\u003e\nMM High:  3 to 5mV (48dB)\u003cbr\u003e\u003cbr\u003e \n\n \n\n \n\n \n\n \n\n\nRIAA Reproduction Characteristics\u003cbr\u003e\n\n20Hz to 20,000Hz      +\/-0.25dB\u003cbr\u003e\n\nOutput voltage: 0.5V at 1KHz\u003cbr\u003e\u003cbr\u003e\n\n\nPower Supply Requirements\u003cbr\u003e\n\nThe Diablo can be powered from either an AC or a DC power supply.\u003cbr\u003e\n\nAC requirements: two independent supplies of:         0v \/ 18v ac,        0v \/ 18v ac.\u003cbr\u003e\n DC requirements: two independent supplies of:         0v \/-22vdc ,      0v  \/ +22vdc\u003cbr\u003e\n\nTo avoid problems only use Trichord power supplies.\u003cbr\u003e\u003cbr\u003e\n\n\nDimensions and Weight\u003cbr\u003e\n\nOverall case dimensions for Diablo:        185mm x 58mm x 112mm (D x H x W)\u003cbr\u003e\n NCPSU\u003cbr\u003e\n Standard AC PSU\n","brand":"Trichord Research","offers":[{"title":"Trichord Diablo with in-line Toroidal PSU","offer_id":57407079121228,"sku":"TDIABLOINLINETOROIDALPSU","price":825.0,"currency_code":"GBP","in_stock":true},{"title":"with Gen2 NC PSU","offer_id":57415862026572,"sku":"TRIDIABWITHGEN2NCPSU","price":1315.0,"currency_code":"GBP","in_stock":true},{"title":"with Gen2 NC PSU \u0026 HP DC Lead","offer_id":57415862059340,"sku":"TRIDIABPHONOGEN2NCPSU\u0026HPDCLEAD","price":1442.5,"currency_code":"GBP","in_stock":true},{"title":"Trichord Diablo Gen2 NC PSU only","offer_id":57415862354252,"sku":"TRICHORDDIABLOGEN2NCPSU","price":532.5,"currency_code":"GBP","in_stock":true},{"title":"Trichord Diablo Gen2 NC PSU with HP PSU Lead","offer_id":57415862387020,"sku":"TRICHORDDIABGEN2NCPSUHPPSULEAD","price":660.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1053\/6891\/2204\/files\/Trichord-Diablo-Phono.jpg?v=1777454806","url":"https:\/\/www.stoneaudio.co.uk\/products\/trichord-diablo-phono-stage","provider":"Stone Audio","version":"1.0","type":"link"}