Authorised Linn Dealer

Authorised Linn Dealer

DS and LP12 Turntable Specialists


why shop @ stoneaudio?
  • High end, 2 channel hi-fi experts
  • UKs finest projection home cinema room
  • Multi-room specialists
  • Installation service
  • Hugely Knowledgeable staff
  • Quality brands
  • Best prices (Price Promise)
  • 30 day money back guarantee
  • Not just a website, visit the UKs best hi-fi showroom
  • FREE parking

Power Amplifiers


Basket Empty
Total 0.00
Secured by Sage Pay Secured by Globalsign SSL
More Articles...

The power amplifier is the final component in the signal chain before the loudspeakers. It is the workhorse of a hi-fi system. It takes the low-level signal from the pre-amplifier and converts it to a powerful signal to drive the loudspeakers. It has a low-level input to receive the signal from the preamplifier, and terminals for connecting loudspeaker cables.

Because of the power amplifier's unique function, it differs from other components in size, weight and use. High-quality power amplifiers are usually large and heavy. Moreover, the power amplifier is the component you don't need to touch and adjust. Consequently, power amplifiers are often placed on the floor near the loudspeakers rather than in an equipment rack.

STEREO POWER AMPLIFIER:
A power amplifier with two audio channels (left and right) in one chassis.

MONOBLOCK POWER AMPLIFIER:
A power amplifier with only one audio channel per chassis. Two monoblocks are required for stereo reproduction.

Page 1†† ( Displaying 10 of 184 Products )
Power Amplifiers - Page 1 Power Amplifiers - Page 1 (Previous Page)
Page 1 of 19
Power Amplifiers - Page 2 (Next Page) Power Amplifiers - Page 19 (Last Page)
Meridian Reference 857 - 2 channel Power Amplifier
Meridian Reference 857 - 2 channel Power Amplifier
Meridian's most powerful reference two channel amplifier has been designed and built to deliver the best possible Hi-Res audio performance from any high-quality passive loudspeaker system. Its low-feedback construction provides ultra-low distortion, ensuring an unparalleled level of clarity and transparency across the audible range.

Bridgeable to over 1.5Kw, the Meridian 857 features a totally new design for a Meridian power amplifier, borne out of extensive research, experience and a thorough understanding of psychoacoustic principles.


Availability Retail (inc. 20% VAT)
£ 6,000.00
Quantity / Units:
Meridian 258
Meridian 258
The Meridian 258 is Meridian's dedicated rack-mount Eight Channel Power Amplifier. This powerful, high performance, cool-running Class D amplifier is suitable for a wide range of applications. At only 1U high, the compact 258 is a category changing amplifier; bringing Meridian high resolution sound quality to every zone it powers. Featuring a highly efficient, cool and fan less construction, the Meridian 258 provides a truly ‘fit and forget’ solution when driving multiple zones. An audiophile approach has been taken to the 258’s component selection, resulting in a level of performance typically associated with power amplifiers offered at a significantly higher price.


Availability Retail (inc. 20% VAT)
£ 1,500.00
Quantity / Units:
Avid Reference Stereo Power Amplifier
Avid Reference Stereo Power Amplifier
Reference Stereo Amplifier

Avid's approach to design is simple: Design the best and then cascade it down. This is strikingly obvious with their Reference Stereo Power Amplifier, a perfect partner to the Reference Pre-Amplifier in less demanding situations.

Employing the same stunning casework as the Reference Mono Amplifier, their Stereo Amplifier sacrifices very little. Even using the same circuit board and layout they are assured of great reliability even under strenuous applications.


£ 30,000.00 *
* Only available for purchase in-store
Avid Reference Mono Power Amplifier
Avid Reference Mono Power Amplifier
AVID Reference Mono Amplifier - 'Power to reawaken your senses'

Why did AVID design a power amplifier? "apart from the synergy with their pre-amp.." For the same reason they originally developed the Acutus turntable over twenty years ago. Avid wanted to make something better, something that’s not just listening but an experience.

The Acutus bought miraculous improvements to customers Hi-Fi systems, from the cartridge through to the speakers. The source is always the most important component, simply because if it fails to perform everything else also fails.


£ 60,000.00 *
* Only available for purchase in-store
Graham Slee Proprius Monoblock Power Amplifier
Graham Slee Proprius Monoblock Power Amplifier
The Proprius monoblock power amplifiers will each deliver a continuous 25 rms Watts into 8 Ω and 45 rms Watts into 4 Ω at less than 1% THD, but will sound a whole lot louder.

They're cute and compact but they're not class-D! They're linear class-AB for a superbly polished sound.

The Proprius is much more than an audio amplifier — it's a most incredible sounding high fidelity amplifier you've simply got to hear!


Availability Retail (inc. 20% VAT)
£ 649.50
£ 1,299.00
Quantity / Units:
Arcam P429 Power Amplifier
Arcam P429 Power Amplifier
Arcam’s P429 four channel amplifier represents another major step forward for Arcam’s audio engineering. Drawing on the many years of amplifier design experience at Arcam, the P429 uses the best quality components and engineering practice to develop a product that will give many years of musical pleasure and reliable service.

With a class G amplifier, toroidal transformer based power supply, acoustically damped chassis, complementary transistor output stages, exceptionally low levels of distortion and noise the P429 is capable of reproducing music with all its original authority and detail. Rest assured you will be hearing the music just as the artist intended.


Availability Retail (inc. 20% VAT)
£ 1,599.00
Quantity / Units:
Marantz PM14S1 Special Edition Power Amplifier
Marantz PM14S1 Special Edition Power Amplifier
New Premium Products from Marantz are always reason for the audiophile community to celebrate. And the new 14 Series Special Edition thrusts the audio experience to new levels – because this Special Edition has been lovingly fi ne-tuned and passionately optimized for High Resolution fi les: marking the new era in music adoration. Available in black or champagne colour, the new 14 Series Special Edition is the epitome of extreme quality and is, quite simply, a masterpiece. As you would expect from such an elite amp, it includes exceptional quality components such as Toroidal transformer and subsystems throughout its construction. The heavy 5mm thick aluminum top lid and highly rigid feet minimize vibration to guarantee purest audio signal treatment. In addition, it incorporates improved customized components, Marantz own developed HDAMs and the use of a more efficient electrical signal path. These elevate the audio quality to an even more sublime level. The PM-14S1 Special Edition comes with a remote controller, which features a stylish black anodized aluminum top, and which can also control the SA-14S1 Special Edition Player. The final touch of elegance is supplied by the special Marantz-made solid copper speaker terminals, for effortless and powerful signaling to your loudspeakers. This is luxury to the extreme.


Availability Retail (inc. 20% VAT)
£ 1,799.00
£ 1,799.00
Quantity / Units:
Marantz HDAMP1 Amplifier
Marantz HDAMP1 Amplifier
This newly-developed Marantz HD-AMP1 is a High-Class compact amplifier, with superb, elegant, classic looks. But don’t let that misguide you, its advanced switching amplifier technology blasts out an ear-splitting 70W at 4ohms, while its dual crystal clock and discrete DAC post filter with Marantz HDAM-SA2 modules make standard counted sound feel as incredible as high-resolution audio. This new amp also gives you the unique Marantz Musical Digital Filtering (MMDF), with two selectable filter characteristics to cater for different tastes and music. Each handles even the minutest of detail with loving care within the digital audio signal. As today’s new media not only comes in 44.1kHz/16 bit resolution – similar to the CD format, Marantz developed the digital section to handle signals of up to 384kHz/32bit resolution and DSD 2.8MHz / 5.6MHz / 11.2MHz. Optical and coaxial digital inputs are ready to connect a TV or set-top box, and there is a USB-B port to stream music directly from your PC or MAC. iDevices can also be connected via the USB port on the front. To safeguard quality when connected to a computer, we built extended isolation around the USB-B input to eliminate the chance of high frequency noise generated by the computer entering the HD-AMP1. Information on volume, input, resolution, and more is shown on the stylish Marantz Porthole Display. While the solid aluminum front is supported by a double layer bottom plate and retro-style side panels. Welcome to the world of compact ecstasy.


Availability Retail (inc. 20% VAT)
£ 799.00
£ 799.00
Quantity / Units:
Linn Klimax Twin Power Amplifier
Linn Klimax Twin Power Amplifier
Klimax Twin

A recipe for stereo perfection

Two channels of Linn's patented Chakra amplification, a machined-from-solid enclosure, and a Dynamik Power Supply make this our highest performing stereo amplifier. In fact, only a pair of Klimax Solos can power your system more effortlessly.

Just like the Solo, the Twin uses a machined-from-solid enclosure not only to look good, but also to provide electrical and mechanical isolation between the audio and power supply boards. The Chakra topology offers significantly increased power, reliability and efficiency, with less heat and distortion than conventional designs.


£ 7,700.00 *
£ 7,700.00 *
* Only available for purchase in-store
Mark Levinson No 534 Dual-Monaural Power Amplifier
Mark Levinson No 534 Dual-Monaural Power Amplifier
Nº534 - AVAILABLE SOON!

The pursuit of perfect amplification is a well-known theme in high-end audio. New technologies present new approaches, while looking to the past provides inspiration for the future. It was in that spirit that the Mark Levinson® № 534 amplifier was developed: a design advised by the traditions and art of classic Mark Levinson amplifier designs, and with a specific target sound: a deep, expansive soundstage, accurate image placement, extended low bass response with good pitch definition, and detailed high frequencies free from “etching.” To that end, the Mark Levinson engineering team started with the following requirements:


£ 20,000.00 *
* Only available for purchase in-store
Page 1†† ( Displaying 10 of 184 Products )
Power Amplifiers - Page 1 Power Amplifiers - Page 1 (Previous Page)
Page 1 of 19
Power Amplifiers - Page 2 (Next Page) Power Amplifiers - Page 19 (Last Page)


Search for products that may contain the words:
within using




order today, delivered tomorrow!*

Home | About | Contact | News | FAQ | Glossary | Classifieds | Testimonials | Install | Sitemap

Hi-fi | Home cinema | Multi-room

* Where product is stocked and order received before 2pm