{"title":"Stereo Power Amplifiers","description":"","products":[{"product_id":"rega-solis-stereo-power-amplifier","title":"Rega Solis Stereo Power Amplifier","description":"\u003cp\u003eExperience the pinnacle of audio performance with the Solis stereo power amplifier. Designed and hand-built in England, this powerhouse is meticulously engineered for those who demand the very best in audio quality, design, and craftsmanship. Each component has been carefully selected for its superior audio properties, ensuring that every track you play, in every format, is delivered with breath-taking clarity and detail.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNext level performance, zero compromise\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eEngineered to drive the most demanding of speakers, the Solis is the perfect partner for the Mercury Pre-amplifier.  Our engineering team have spent the last four years obsessively developing and fine tuning the circuit to create the most engaging and accurate performance. The advantage of using a separate chassis for the pre-amplifier and power amplifier allows the low voltage, sensitive circuitry to be isolated from the high current, power amplifier circuitry. This reduces interference between the pre-amplifier and power amplifier leading to a less noisy signal path and a cleaner signal. Also compatible with the Rega Aethos stereo power amplifier.\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eFully symmetrical discrete circuitry in the signal path\u003c\/li\u003e\n\u003cli\u003eBalanced and unbalanced inputs\u003c\/li\u003e\n\u003cli\u003e168W into 8ohms \/ 305W into 4ohms\u003c\/li\u003e\n\u003cli\u003eShort circuit protection\u003c\/li\u003e\n\u003cli\u003eThermal cut-out and DC Protection\u003c\/li\u003e\n\u003cli\u003eStandby mode (user selectable)\u003c\/li\u003e\n\u003cli\u003e12V trigger\u003c\/li\u003e\n\u003cli\u003eIndependent MUTE function\u003c\/li\u003e\n\u003cli\u003eCompatible with Mercury pre-amplifier and Aethos stereo amplifier\u003c\/li\u003e\n\u003cli\u003eLifetime warranty against manufacture defects\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e\u003cstrong\u003eAmplifier Circuit\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Solis uses a fully symmetrical circuit throughout with a differentially driven, low distortion, high linearity and bandwidth common base voltage amplifier driver stage. This type of symmetrical circuit topology will provide the necessary voltage swings to enable the Solis to drive any speaker system with the minimum of distortion. Twelve (six per channel) Sanken 130-Watt 15A high frequency, multi-emitter output transistors are used in a “triple” high current output stage enabling the Solis to drive even the most awkward of speaker systems with ease. The cascoded differential input amplifier uses two, low noise, LED referenced, current generators. The open \u0026amp; closed loop feedback levels and gain bandwidth product components are optimised to give a tight and controlled sound stage, especially at the low frequency end of the audio range. Nichicon audio grade capacitors are used in critical bypass and decoupling positions. Electrolytic capacitors have been bypassed with polyester capacitors where necessary, improving on the HF performance. HTR non-inductive resistors are used in the output stage. All these features amalgamate to create the supreme level of performance found in the Solis.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePower Supply\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Solis uses two, low-noise, custom designed, 330VA toroidal transformers using high-grade fully bonded core material.  This reduces mechanical noise from the transformer when the transformers are operating under arduous mains (line) conditions with high levels of asymmetric mains (line) distortion. These transformers combined with 40,000µF of Rega K-Power smoothing capacitors per channel, provide ample current to drive the hardest of loads, effectively doubling the power into a 4? from an 8? load. All the power supplies utilise fast recovery rectifier diodes throughout. (Fast diodes generate less high frequency switching noise therefore giving rise to a cleaner DC). The input and low-level driver stages are fed from a regulated symmetrical tracking power supply with a low noise voltage reference, which provides a fully stabilised, low noise voltage, ensuring the highest level of sonic purity. All the dedicated audio power supplies feed only the audio circuits.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Solis has an extensive protection circuit that monitors the speaker DC levels and amplifier temperature. This amplifier protection circuit works in conjunction with the supervisory circuit. The Solis uses microcontroller based slow start, standby and power supply supervisory circuits to power-up the two massive transformers from standby, keeping the in-rush current to a minimum. The supervisory circuits also control the no-signal standby power down function to comply with current Eco requirements. The slow start, power supply supervisory microcontroller and protection circuits have their own dedicated power supply galvanically isolating it from the audio, thus, keeping the audio signal path as pure as possible.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSignal Path\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eICEL polypropylene capacitors, HTR non-inductive resistors and relays are used in the signal path.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eBalanced \/ Unbalanced\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFor normal domestic Hi-Fi, Rega recommends the use of unbalanced connections, for optimum sound quality. The Mercury and Solis core circuits are unbalanced. Because of this, additional circuitry is needed to create a balanced system. Although the balanced input and output circuits in the Mercury are very high performance, additional circuits will always add some inherent noise\/distortion to the signal.\u003c\/p\u003e\n\u003cp\u003eTrue balanced systems are widely used on professional audio equipment. This requires all parts of the amplification and cables to be running as a “balanced system”. Balanced connections are used where long cable runs are necessary, particularly in studio and PA applications. They help to cancel unwanted noise pickup in the long runs of cable. This noise rejection is why balanced circuits are used in professional equipment. Balanced circuits do not offer an intrinsic increase in sound quality over unbalanced circuits, as is sometimes perceived within the Hi-Fi Industry.\u003c\/p\u003e\n\u003cp\u003eAnother attractive aspect of balanced systems is they use the “XLR” style plugs. These are physically larger and can have a subjectively better insertion feel than standard Phono\/RCA style plugs. This can often lead to perceived value and contact quality, where in practice, there is no objective improvement.\u003c\/p\u003e\n\u003cp\u003eThe vast majority of Hi-Fi equipment is an unbalanced topology (sometimes called single ended).\u003c\/p\u003e\n\u003cp\u003eIn most circumstances, balanced connections are inappropriate for domestic Hi-Fi equipment. The increased noise rejection is not necessary and does not outweigh the drawbacks of additional circuit complexity. On expensive equipment, balanced connections are sometimes provided for use in recording studios or to satisfy the perception that balanced connections are better. Rega knows that some of its products are used in the studio arena, so we have added balanced XLR connections, implementing additional circuitry.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eHistory and Innovation\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe Solis amplifier is the culmination of almost four decades of Rega engineering experience in solid-state amplifier development. This expertise, combined with the “clam shell” Elicit and Exon amplifier circuits, laid the foundations for the advanced amplifier circuit found in the Solis. All components selected during the design process were chosen for their sonic and electrical properties. Rega has applied enhancements to the thermal stability and heatsinks of the previous version of the power amplifiers, along with state of the art, surface mount technology perfected over the last 15 years. When combined with the Aura phono stage and Mercury pre-amplifier, the listener will have a fully symmetric, discrete system from source to speaker.\u003c\/p\u003e","brand":"Rega","offers":[{"title":"Default Title","offer_id":57603631546755,"sku":"16955","price":6950.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/16955-1RegaSolisFront.jpg?v=1773676970"},{"product_id":"arcam-pa240-stereo-power-amplifier","title":"Arcam PA240 Stereo Power Amplifier","description":"\u003cdiv id=\"bodycontainer\" class=\"container\"\u003e\n\u003cdiv id=\"pnlContent\"\u003e\n\u003cdiv class=\"product-page\"\u003e\n\u003cdiv class=\"product-info row\"\u003e\n\u003cdiv class=\"product-info\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"infobox tab-content\"\u003e\n\u003cdiv class=\"tab-pane fade in active\" id=\"tab-description\"\u003e\n\u003cp class=\"col endCol\"\u003eThe PA240 is a high-performance power amplifier that delivers 2 channels of efficient Class G amplification. With an impressive 380W per channel, the PA240 is designed to offer the greatest flexibility and power without compromising on control.\u003c\/p\u003e\n\u003cp class=\"col endCol\"\u003eFeaturing the best-in-class components including a toroidal based power supply, acoustically damped chassis, paralleled transistor output stages and exceptionally low levels of distortion, the PA240 masters the reproduction of music with all its originality and detail for an unmatched level of sound quality and clarity.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Arcam","offers":[{"title":"Default Title","offer_id":57651918274947,"sku":"13665","price":2249.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/13665-1ArcamPA240FrontSoundcraftHiFi.jpg?v=1774088491"},{"product_id":"chord-electronics-ttoby-stereo-power-amplifier","title":"Chord Electronics TToby Stereo Power Amplifier","description":"\u003cdiv id=\"bodycontainer\" class=\"container\"\u003e\n\u003cdiv id=\"pnlContent\"\u003e\n\u003cdiv class=\"product-page\"\u003e\n\u003cdiv class=\"product-info row\"\u003e\n\u003cdiv class=\"product-info\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"infobox tab-content\"\u003e\n\u003cdiv class=\"tab-pane fade in active\" id=\"tab-description\"\u003e\n\u003cp\u003eThe TToby range may be ideally suited to compact living environments, but don’t let that fool you. With similar legendary amplification derived from our SPM range, TToby doesn’t compromise on power or providing you with the purest audio experience possible.\u003c\/p\u003e\n\u003cp\u003eThe TToby has been designed to complement our desktop DAC\/headphone amplifier, the Hugo TT 2 and shares the same compact form factor as its stablemate. The combination of our 1M-tap digital upscaling device M Scaler, Hugo TT 2 and TToby provides a high-quality hi-fi system, with desktop dimensions and a space-saving footprint. Despite its size, the TToby sets new standards for small amplifiers and takes full advantage of Chord Electronics’ proprietary amplification technology and design know-how.\u003c\/p\u003e\n\u003cp\u003eThe addition of TToby, enables owners of the Hugo TT 2 to fully exploit the device as a ‘digital preamp’, effortlessly driving a wide variety of loudspeakers, large or small, in addition to the Hugo TT 2’s headphone prowess. The TToby is a 100-watt design, featuring both an unbalanced and balanced input, to take advantage of the Hugo TT 2’s XLR output.\u003c\/p\u003e\n\u003cp\u003eTToby features two of our famous high-frequency power supplies and benefits from forced air-cooling through the aluminium casework by means of a sonically closed anechoic miniature multi-speed quadruple-fan plenum chamber, enabling the external design to be free of sharp heatsinks and, therefore, carry a stunning aesthetic. The M Scaler\/Hugo TT 2\/TToby combination offers both class-leading DAC and amplification technology via headphones and loudspeakers, giving complete flexibility within the demands of busy households.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Chord Electronics","offers":[{"title":"Black","offer_id":57837991428483,"sku":"15508","price":2995.0,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":57837991461251,"sku":"15503","price":2995.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/15503-1-CHORDTTobyBlackMainSoundcraftHiFi.jpg?v=1776679870"},{"product_id":"bowers-wilkins-cda-2hd","title":"Bowers \u0026 Wilkins CDA-2HD Distribution Amplifier","description":"\u003ch3\u003e\n\u003cimg\u003e\u003cstrong\u003eCDA-2HD\u003c\/strong\u003e\n\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eThe CDA-2HD is a high-power distribution amplifier, designed to drive current and future Bowers \u0026amp; Wilkins Custom Installation loudspeakers. Embedded DSP allows optimisation of a wide range of products and dynamic EQ for Bowers \u0026amp; Wilkins subwoofers. It boasts two channels of 500 Watts each, and its half-rack width 2U design delivers high performance from a minimum rack space.\u003c\/span\u003e\u003c\/p\u003e","brand":"Bowers \u0026 Wilkins CI","offers":[{"title":"Default Title","offer_id":57849373786499,"sku":"21475","price":2200.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/21475-1BWCDA2HDFeet.jpg?v=1776788121"},{"product_id":"linn-klimax-twin-stereo-power-amplifier","title":"Linn Klimax Twin Stereo Power Amplifier","description":"\u003cp\u003eJust 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.\u003c\/p\u003e\n\u003cp\u003eUse one Twin for a passive stereo set-up, and add more Twins to multi-amp your speakers or upgrade to a fully Aktiv set-up, connected to Klimax Exaktboxes.\u003c\/p\u003e","brand":"Linn","offers":[{"title":"Black","offer_id":57897627713923,"sku":"13296","price":9390.0,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":57897627746691,"sku":"16985","price":9390.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/13296-1LinnKlimaxTwinMainSoundcraftHiFi.jpg?v=1777288764"},{"product_id":"rotel-michi-s5-stereo-power-amplifier","title":"Rotel Michi S5 Stereo Power Amplifier","description":"\u003cp\u003eThe Michi S5 Stereo Amplifier delivers 500 watts per channel into 8 ohms loads with best in class audio performance. The dual monoblock design includes twin, oversized, in-house manufactured toroidal transformers for exceptional bass energy while maintaining control and precision of the finest detail all packaged in an elegant design.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 x 500 Watts of robust power\u003c\/li\u003e\n\u003cli\u003eClass AB amplifier design\u003c\/li\u003e\n\u003cli\u003ePatented British bulk storage capacitors \u003c\/li\u003e\n\u003cli\u003eMassive power supply using Dual Toroidal Transformers\u003c\/li\u003e\n\u003cli\u003eBalanced XLR inputs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe Michi S5 Stereo Power Amplifier is a best in class linear amplifier delivering 500 watts of Class AB power in 8 ohm and over 800 watts to 4 ohm loads. The dual monoblock architecture is equipped with twin, custom engineered oversized, in-house manufactured 2,200 Volt Amp toroidal transformers in individual epoxy filled enclosures eliminating noise and vibration. A bank of 4 British patented bulk storage capacitors totaling 188,000uF delivers exceptional bass energy while maintaining precise detail and control to 32 high current output transistors ensuring effortless accuracy of the timing and rhythm under even the most difficult of load conditions.\u003c\/p\u003e\n\u003cp\u003eAudio performance must be engineered from product concept through production. This is evidenced in the S5 as the result of countless hours of engineering design reviews, critical component evaluation and sonic tuning. Accuracy at its best while delivering on a promise to ensure the audio provides entertainment deserving of the Michi logo.\u003c\/p\u003e\n\u003cp\u003eAn elegant industrial design puts the finishing touch on this amplifier with a font panel color display and Michi exclusive custom high current 5-way rhodium plated binding posts. The included remote control provides easy setup and operation with RS232 and Ethernet connections supporting all popular control systems.\u003c\/p\u003e","brand":"Michi by Rotel","offers":[{"title":"Default Title","offer_id":57953832042883,"sku":"16523","price":6700.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/16523-1-Michi-S5-Front-SOUNDCRAFTHIFI.jpg?v=1777636764"},{"product_id":"naim-nap-250-power-amplifier","title":"Naim NAP 250 Power Amplifier","description":"\u003cdiv id=\"bodycontainer\" class=\"container\"\u003e\n\u003cdiv id=\"pnlContent\"\u003e\n\u003cdiv class=\"product-page\"\u003e\n\u003cdiv class=\"product-info row\"\u003e\n\u003cdiv class=\"product-info\"\u003e\n\u003cdiv class=\"container\"\u003e\n\u003cdiv class=\"row\"\u003e\n\u003cdiv class=\"col-xs-12\"\u003e\n\u003cdiv class=\"infobox tab-content\"\u003e\n\u003cdiv class=\"tab-pane fade in active\" id=\"tab-description\"\u003e\n\u003ch3\u003e\u003cstrong\u003eThe iconic Naim amplifier\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eFirst appearing in 1975, the NAP 250 power amplifier has become an iconic product. Its aesthetic and technical evolution has ensured its sustained first-rate performance over the years, creating unforgettable musical experiences.\u003c\/p\u003e\n\u003cp\u003eThe new sixth generation model delivers more power than ever. Its ultra-modern technology provides unrivalled performance and system flexibility. Designed in Salisbury in the United Kingdom, it can be paired with the loudspeakers of your choice to deliver outstanding listening sessions.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNAP 250\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eTo get the best out of your loudspeakers and music, combine the NSC 222 with its perfect partner: the NAP 250 power amplifier. First appearing in 1975, NAP 250 has become an iconic product. Today, it delivers more power than ever and offers ever more flexibility within a complete system. The cutting-edge engineering work involved in the NAP 250 results in unrivalled performance. It delivers 100 watts of A\/B class power per channel, fully adjustable to set your music free in the most remarkable way.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eThe best of Naim\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe cutting-edge design of the NAP 250 means it can be used even at high sound levels: its heat sink reacts to the increased volume, keeping the product “cool”. Other improvements include the addition of symmetrical XLR connections and a series of technologies derived from Naim's iconic Statement amplifier, including a eddy current separator available between the loudspeaker outputs. It also incorporates the Naim Audio DR (Discrete Regulator) technology found in the Statement, to benefit from the stable, fluid power supply we know to be essential.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNaim know-how\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUnder the guidance of our Technical Director, Naim’s specialist engineers have developed simple but elegant circuits, combined with our acclaimed and high-performing DR technology, guaranteeing the stable and fluid power supply so essential for superior performance. Our teams opt for the highest-quality components including Statements NA009 power transistors and perform ultra-precise measurements for an uncompromising result.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eA timeless design\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eNaim products are designed to be both contemporary and timeless. Our creations forego any unnecessary decoration that does not contribute to performance targets or add to the sound quality. The design of the iconic NAP 250 power amplifier is functionally coherent, making it a pleasure to use. It also boasts extreme precision, combining a sleek design with innovative materials.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003ePerfect integration in a complete system\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe NAP 250 can be connected to any of the New Classic products, but also to the previous Classic lines using a new range of specific cabling. Above all, it is the perfect partner for the NSC 222 preamplifier and streamer.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eThe story of Naim and aluminium\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eOur founder, Julian Vereker, immediately understood the many benefits of aluminium as a material for wrapping Naim electronic components. He knew that delicate audio components are very sensitive to the effects of magnetic fields, unstable temperatures, unwanted vibrations, etc. While other manufacturers were bending thin sheets of steel, Naim used thick plates of aluminium.\u003c\/p\u003e\n\u003cp\u003eThe Naim Classic range maximises this highly technical and durable approach, with aluminium housings rivalled only by Statement, our flagship product. Naim chose a superior-quality aluminium, which optimally combines thermal and microphonic properties. The front panels are treated with solid 20mm-thick aluminium billets; heat sinks frame the side panels and 5mm plates cover the top and bottom surfaces of the products. The aluminium is brushed, sandblasted and anodised to guarantee unalterable beauty throughout the product's life. The New Classic range can be immediately distinguished with one look and one touch, before the first note of music even plays.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Naim Audio","offers":[{"title":"Default Title","offer_id":57959403225475,"sku":"16016","price":5700.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/16016-1-Naim-NAP-250-Main-SOUNDCRAFTHIFI.jpg?v=1777731389"},{"product_id":"naim-nap-500-dr-power-amplifier","title":"Naim NAP 500 DR Power Amplifier","description":"\u003ch3\u003e\u003cstrong\u003eThe devil is in the detail\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eAs the debut product in our reference 500 Series range, the NAP 500 is a monumental expression of Naim Audio amplifier technology. Its design was honed over six years of collaborative work with suppliers of specialist parts and each product takes days of dedicated assembly by our most skilled technicians in Salisbury. It’s this eye for detail, alongside its remarkable power, that allows the NAP 500 to bring your music into breath-taking focus.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eNew Statement Technology\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eOur flagship Statement amplification system was ten years in the making. The research and development project drew on all of our knowledge and expertise, yielding several breakthroughs in technology. We’ve recently introduced two new technologies from the Statement project to our core range of power amplifiers.\u003c\/p\u003e\n\u003cp\u003eThe NAP 500 now features the new NA009 transistors first introduced in Statement. In development for over a year, this key component was created in partnership with a specialist semi-conductor manufacturer to achieve the best possible sound quality. The 500 also includes the high power Naim Audio DR (Discrete Regulator) technology used in Statement to provide the smooth, stable power supply we know is critical for the audio electronics to make music come to life.\u003c\/p\u003e\n\u003cp\u003eThese two new technologies, combined with other small improvements to layout and componentry, mean the NAP 500 DR can produce even more of the fundamental musical pace, rhythm and timing that made the originals so popular with music lovers.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnology \u0026amp; Craft\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eThe NAP 500 delivers 140W per channel into 8 ohms and is capable of prolonged output into 2 ohms with no discernible impact to performance. Its two box configuration is classic Naim Audio, with the power supply completely removed to the separate 500 PS power supply for ultimate performance. Each channel of the NAP 500 includes ten stages of local regulation. To reduce interference from the mains supply further, the transformer and first stages of the power supply are in a separate enclosure, the 500 PS, which provides twelve raw D.C. supplies for the power amplifier.\u003c\/p\u003e\n\u003cp\u003eA bridged configuration allow for maximised open and closed loop speed, less intrusive protection circuitry and reduced interaction between input and output signals as the very high drive currents to the loudspeaker do not flow through the system earth. The NAP 500 also features the new output transistor, the NA009, specifically designed for the purpose through months of collaborative work with a specialist supplier. The circuit topology has been developed to maximise bandwidth and reduce distortion and power supply dependency. Also, special attention has been paid to reducing thermally-induced noise, an especially important consideration in power amplifiers.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e140W per channel output into 8 ohms; capable of prolonged output into 2 ohms with no discernible impact on performance\u003c\/li\u003e\n\u003cli\u003eBridged power amplifier configuration for maximised open and closed-loop speed, with ten stages of local regulation per channel\u003c\/li\u003e\n\u003cli\u003eTwo-box configuration with 500 PS power supply for optimum rejection of electromagnetic interference\u003c\/li\u003e\n\u003cli\u003e1,100VA toroidal transformer provides 12 raw DC supplies for the power amplifier\u003c\/li\u003e\n\u003cli\u003e25kg brushed, black-anodised chassis with distinctive heatsink plus variable speed intelligent fan system for discreet extra cooling if required\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Naim Audio","offers":[{"title":"Default Title","offer_id":57982262018435,"sku":"725","price":19995.0,"currency_code":"GBP","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/725-1NaimNAP500DRFrontSoundcraftHiFi.jpg?v=1777984985"},{"product_id":"quiescent-t100spa-stereo-power-amplifier","title":"Quiescent T100SPA Stereo Power Amplifier","description":"\u003ch3\u003e\u003cstrong\u003ePerformance\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eSimplified, streamlined, yet masterfully designed, the new T100SPA expertly addresses, providing abundant power without adding noise. A newly designed audio board using surface-mount components to minimise circuit inductance coupled with a power supply that can deliver more than twice the amount of energy of its predecessor, T50SPA, this is not just an upgrade but a significant technological advance. Fully vibration-protected and with radio frequency and interference-reducing components, the T100SPA works quickly and precisely for sublimely detailed, beautifully nimble sound and breathtaking realism.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eTechnology\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003eUsing current feedback with exceptionally high bandwidth and a minimal component count, this solid-state class A\/B stereo power amplifier gives a gripping and propulsive performance.\u003c\/p\u003e\n\u003cp\u003eOur new amplifier module uses state-of-the-art surface-mount technology to reduce circuit inductance which also allows us to ensure that we keep everything in one box. Each amplifier module is mounted directly on the heatsink with a single pair of MOSFET transistors, ensuring that lead inductance is minimal. This arrangement means that the T100SPA delivers awe-inspiring levels of detail and realism.\u003c\/p\u003e\n\u003cp\u003ePower amplifiers are often severely disadvantaged by high levels of microphonic noise, robbing the signal of dynamic energy and accuracy. The T100SPA benefits from our QPower™ system incorporating d.c. blocking, high-frequency noise reduction and vibration isolation of the transformer and bridge rectifiers from the audio boards. This decoupling of vibration prevents board components from generating erroneous microphonic-generated noise. This is essential for a power amplifier to drive even the most demanding speakers.\u003c\/p\u003e\n\u003cp\u003eInputs and outputs are decoupled from the preamplifier using our proprietary EMI\/RFI absorption. This technology is a highly efficient bi-directional high-frequency block preventing intermodulation with the musical signal. Uniquely, this technology does not disrupt the musical signal in any way, thanks to our patented approach.\u003c\/p\u003e\n\u003cp\u003eThat’s a lot of technology to squeeze into a single box. This proved to be one of the biggest engineering challenges faced by our designers. The result is an amplifier that reveals even the tiniest detail and can truly keep pace with the music.\u003c\/p\u003e\n\u003cp\u003eUsing current feedback with exceptionally high bandwidth and a minimal component count, this solid-state class A\/B stereo power amplifier gives a gripping and propulsive performance that is truly class-leading.\u003c\/p\u003e\n\u003cp\u003eHigh levels of microphonic noise often severely disadvantage power amplifiers, robbing the signal of dynamic energy and accuracy. During the development phase, our primary objective of this design was to prevent these effects. The culmination of this work has achieved this goal in four ways:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eWith a robust power supply employing a custom-wound transformer and low-microphonic components, all fully coupled to our patented absorption matrix technology. Using the highest-grade Japanese steel at its core, our transformers have a higher magnetic flux density, ensuring clean power even when the amplifier works with the most demanding asks.\u003c\/li\u003e\n\u003cli\u003eBy using significant vibration protection in and around the sensitive analogue input stages.\u003c\/li\u003e\n\u003cli\u003eBy employing a dual-mono topology. Critically, this includes independent low resonance and acoustically disruptive heatsinks for the left and right output devices.\u003c\/li\u003e\n\u003cli\u003eAn exceptionally high-quality filter using Audio Note Kaisei non-polar capacitors results in a low impedance and highly responsive power supply.\u003c\/li\u003e\n\u003cli\u003eDeployment of the QPower™ noise suppression system.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eQPower™ is the system around the d.c. power supply to the audio boards and the IEC socket to the rear panel. When an amplifier is asked to provide power in demanding situations, the power supply transmits vibration that is often transferred into the audio electronics backwards through the mains connection and forwards into the audio boards. Although not often observable to the human ear, this vibration causes electronic components to exhibit noise known as microphonic, adding to the musical signal through intermodulation.\u003c\/p\u003e\n\u003cp\u003eThe first major vibration source is when the transformer exceeds its magnetic flux density. In this case, it is possible to hear the vibration resulting, and despite views that this does not impact the performance of the audio circuits, nothing could be further from reality. It can also be very annoying to listen to! One persistent cause of transformer hum is a d.c. offset, which is increasingly caused by the prevalence of LED light bulbs. We use a non-intrusive approach to blocking the d.c before it reaches the transformer’s primary windings. Our toroidal transformers are designed to be silent and stay that way.\u003c\/p\u003e\n\u003cp\u003eEven though we cannot hear further vibration in the transformer, we know it is there and still causing havoc in electronics upstream to the mains and downstream to the audio boards. Here, we use an internal version of highly acclaimed Peak Mains Modules inside the amplifier.\u003c\/p\u003e\n\u003cp\u003eNext, we handle the problem of bridge rectification vibrating at approximately 100Hz and its associated harmonics cascading into the rest of the circuit. This is done by building the rectification and DC smoothing circuits directly on top of our absorption matrix before the output is sent to the DC rails on the board.\u003c\/p\u003e\n\u003cp\u003eThe T100SPA uses a total of 5 modules in its QPower™ configuration, and the result is less pollution of the critically important phase information needed to demonstrate realism and musical presence.\u003c\/p\u003e\n\u003cp\u003eCasework is machined using high-grade aluminium and uses Quiescent proprietary techniques for managing vibration and electrical noise. The Quiescent heatsinks are carefully crafted to dampen any remaining vibration and prevent signal damage in the audio boards. The top of the unit is a high-grade, non-metallic plate preventing the unwanted effects caused by the Faraday cage. All casework is made to our design, and we never buy off-the-shelf casework components as they exhibit RFI\/EMI characteristics that do not meet our exacting standards.\u003c\/p\u003e\n\u003cp\u003eAddressing vibration problems allows us to maximise the other key features of the amplifier. Current feedback and high bandwidth offer speed and precision that is detailed and transparent with exceptionally low phase error, resulting in superb imaging and soundstage. Additionally, extensive EMI and RFI reduction throughout keeps noise and RF inter-modulation, leading to an unprecedented low noise floor revealing intricate levels of detail, timing, accuracy, and musical expression of the original recording.\u003c\/p\u003e\n\u003ch3\u003e\u003cstrong\u003eSpecifications\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cspan\u003eRated at 130W per channel into 8ohms, the T100SPA stereo power amplifier drives effortless power into the most demanding loads thanks to its patented QPower™ technology.\u003c\/span\u003e\u003c\/p\u003e","brand":"Quiescent","offers":[{"title":"Black","offer_id":58028789760387,"sku":"15973","price":24800.0,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":58028789793155,"sku":"15972","price":24800.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/15973-1QuiescentT100SPAStereoPowerAmplifierBlackMainSoundcraftHiFi.jpg?v=1778597795"},{"product_id":"rotel-rb-1552-mkii-stereo-power-amplifier","title":"Rotel RB-1552 MKII Stereo Power Amplifier","description":"\u003cp\u003eRB-1552 MkII is built upon the same platform as the RB-1582 MkII with only a slightly smaller power output capability at 2 x 130 Watts.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 x 130 Watts of robust power\u003c\/li\u003e\n\u003cli\u003eClass AB amplifier design\u003c\/li\u003e\n\u003cli\u003eHigh-quality slit foil capacitors made in Britain\u003c\/li\u003e\n\u003cli\u003eBalanced XLR inputs\u003c\/li\u003e\n\u003cli\u003e12 volt trigger input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThe RB-1552 MkII is a 130 Watt per channel class AB amplifier. It is engineered to be powerful and robust, yet able to extract every last nuance out of even the most complex musical score.\u003c\/p\u003e\n\u003cp\u003eNotable features of the amplifier include independent left and right power rectification stages and decoupling. The layout is essentially a mono block design. Further evidence of design over-spec is in the selection of premium “slit-foil” capacitors, which provide plenty of reserve energy for extremely dynamic audio passages and are able to quickly replenish themselves due to the nature of their unique design. Input options are balanced XLR or unbalanced RCA connectors.\u003c\/p\u003e\n\u003cp\u003eThe RB-1552 MkII stereo amplifier has been engineered to provide high-resolution audio performance, yet it is very affordable, as has been the tradition with Rotel electronics for over 50 years.\u003c\/p\u003e","brand":"Rotel","offers":[{"title":"Black","offer_id":58097873158531,"sku":"13848","price":1099.0,"currency_code":"GBP","in_stock":true},{"title":"Silver","offer_id":58097873191299,"sku":"13849","price":1099.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0939\/9356\/6595\/files\/13848-1RotelRB-1552MainBlackSoundcraftHiFi.jpg?v=1779371455"},{"product_id":"rotel-rb-1582-mkii-stereo-power-amplifier","title":"Rotel RB-1582 MKII Stereo Power Amplifier","description":"\u003cp\u003eAt 2 x 200 Watts per channel and utilizing Rotel's Balanced Design Concept for superior performance, the RB-1582 MkII is a compelling stereo amplifier.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e2 x 200 Watts of robust power\u003c\/li\u003e\n\u003cli\u003eClass AB amplifier design\u003c\/li\u003e\n\u003cli\u003eHigh-quality slit foil capacitors made in Britain\u003c\/li\u003e\n\u003cli\u003eBalanced XLR inputs\u003c\/li\u003e\n\u003cli\u003e12 volt trigger input\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRotel’s next largest stereo amplifier at 200 Watts per channel provides the massive current to drive the very largest Hi-Fi systems effortlessly. And like its smaller brother, the RB-1582 MkII has been designed to excel at resolving the subtle details in music as well as supplying the brawn required for extremely dynamic passages. It is able to achieve this difficult dual requirement because of the meticulous attention paid to circuit design and parts selection.\u003c\/p\u003e\n\u003cp\u003eThe RB-1582 MkII's high-end performance begins with an extremely large toroidal transformer combined with a total of 60,000µF storage capacity in special “slit foil” capacitors to provide completely stable power to the output stage. Slit foil capacitors have the ability to charge and discharge extremely quickly, thereby ensuring signal fidelity during orchestral crescendos or repetitive kick-drum impacts, for example. Both left and right channel construction are laid out in a mono block design (after the toroidal transformer) and all grounding is terminated in a star pattern on a copper grounding plate to ensure low signal to noise. 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Rotel’s new Class AB stereo power amplifier is rated at 350 Watts per channel into 8 ohms both channels driven. That is a lot of power, but larger listening rooms or less sensitive loudspeaker designs require it to bring out the best possible performance and attain realistic audio dynamics.\u003c\/p\u003e\n\u003cp\u003eThe impressive capabilities of this amplifier begin with a solid foundation consisting of twin massive toroidal transformers custom made by Rotel. These transformers are just part of a rock-solid power supply that includes eight special British made BHC capacitors, known for their low loss and quick response times. These components will continue to supply all of the voltage and current requirements needed, even under the most difficult load conditions.\u003c\/p\u003e\n\u003cp\u003eBut power unrefined has never been a Rotel design goal. Every aspect of circuit design has been carefully considered and each component has been rigorously selected after extensive listening sessions. 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