{"title":"Solid state power amplifiers","description":"","products":[{"product_id":"dva-m225-mono-block-solid-state-amplifier","title":"DVA M225 Monoblock Power Amplifier","description":"\u003cp\u003e\u003cstrong\u003eThe DVA M225 monoblock power amplifier is a stunningly musical high-fidelity amplifier that is designed to accurately preserve all of the energy of a live listening experience.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe DVA M225 is a compact and powerful solid state amplifier. It's rated at 225 watts into 8 ohms and over 300 watts into 4 ohms. It is comfortably paired with any speaker 4 ohms and up, including speakers demanding a LOT of power.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe DVA M225's pure differential design let us create an amplifier that presents a life size image with stunning depth, dynamic range, definition, and transparency. There is an amazing faithfulness to the music, combined with accuracy that makes listing to music pure enjoyment. The sound stage is life size and so pure that you hear much more of the music in a way that will startle and please you.\u003c\/p\u003e\n\u003cp\u003eThe DVA M225 has a \u003cstrong\u003esingle XLR input\u003c\/strong\u003e, parallel 5-way gold plated speaker jacks, and external speaker fuses. The DVA M225 is designed to be used with a source providing XLR outputs, like our stunning \u003ca title=\"DVA Digital Preamplifier\" href=\"https:\/\/avahifi.com\/collections\/d-to-a-converters\/products\/dva-digital-preamplifier\" target=\"_blank\"\u003eDVA Digital Preamplifier\u003c\/a\u003e. \u003cstrong\u003eFor use with RCA sources\u003c\/strong\u003e, you will need a separate active or transformer-based RCA to differential XLR converter like our \u003ca title=\"R2X single-ended to differential converter\" href=\"https:\/\/avahifi.com\/collections\/accessories\/products\/dva-r2x\" target=\"_blank\"\u003eR2X single-ended to differential converter\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eThe faceplate of the subtle yet stylish chassis is 10mm thick, clear anodized aluminum.\u003c\/p\u003e\n\u003ch3\u003eAudio Circuits\u003c\/h3\u003e\n\u003cp\u003eThe DVA M225 incorporates our unique Single Ended Transistor (SET) voltage amplifier design. The amplifier consists of an amazingly effective transistor front end followed by a very fast and rugged power MOSFET current amplifier section. Bandwidth is flat from 3Hz to 100KHz.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eIn addition, the DVA M225 is a fully differential design, which means it cancels common mode noise and distortion for more accurate reproduction. It's a class AB amplifier but operates as class A at normal listening levels.\u003c\/p\u003e\n\u003cp\u003eThe combination of our electronic and mechanical design ideas allows the amplifier to run cooler, last longer, and be amazingly fault tolerant. The DVA M225 has four double-die MOSFET output transistors. There is plenty of power for any rational loudspeaker 4 ohms and up.\u003c\/p\u003e\n\u003ch3\u003ePower Supply and Layout\u003c\/h3\u003e\n\u003cp\u003eAll of our SET power amplifiers, including the new DVA M225, have regulated power supplies for all areas of the amplifier, including the output transistors. The regulated power supplies provide unequaled bass control and micro dynamics.  In the DVA M225 there are no unregulated power supplies -- anywhere!\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe DVA M225 operates with standard 120 Volt power, has an IEC power jack, and includes a polarized 120V power cord.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eDimensions 9” wide, 10” deep, 4” high. Shipping weight is 17 pounds.\u003c\/p\u003e\n\u003ch3\u003eReviews\/Awards\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart-Time Audiophile \u003ca rel=\"noopener\" href=\"https:\/\/pt.audio\/2021\/07\/09\/audio-by-van-alstine-dva-m225-monoblock-amplifiers-review\/\" target=\"_blank\"\u003eReviewers Choice\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart-Time Audiophile \u003ca href=\"https:\/\/pt.audio\/2025\/05\/30\/ptaudios-best-power-amplifiers-buyers-guide-summer-2025\/\" target=\"_blank\"\u003e2025 Best Power Amplifiers\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart-Time Audiophile \u003ca rel=\"noopener\" href=\"https:\/\/pt.audio\/2024\/12\/06\/2025s-best-power-buyers-guide-2025\/\" target=\"_blank\"\u003e2024 Best Power Amplifiers\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003eAudiophilia \u003ca rel=\"noopener\" href=\"https:\/\/www.audiophilia.com\/reviews\/2021\/5\/18\/uwo8qezl1oq1y1gvtphmj66gjx123f\" target=\"_blank\"\u003eSTAR Component\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.theabsolutesound.com\/articles\/audio-by-van-alstine-dva-m225-monoblock-power-amplifier\/\" target=\"_blank\"\u003eThe Absolute Sound\u003c\/a\u003e\u003c\/li\u003e\n\u003cli\u003eThe Absolute Sound Editors' Choice 2024\u003c\/li\u003e\n\u003cli\u003eThe Absolute Sound Editors' Choice 2025\u003c\/li\u003e\n\u003cli\u003eThe Absolute Sound Editors' Choice 2026\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e","brand":"Audio by Van Alstine","offers":[{"title":"Default Title","offer_id":39329468907581,"sku":"","price":1699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/products\/DVA_M225_DSC_1017.jpg?v=1622559034"},{"product_id":"dva-m750-monoblock-power-amplifier","title":"DVA M750 Monoblock Power Amplifier","description":"\u003cp data-mce-fragment=\"1\" style=\"text-align: center;\"\u003e\u003cspan style=\"color: #880000;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eShipping included in price for continental U.S.\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003cstrong\u003eThe DVA M750 monoblock power amplifier is a stunningly musical high-fidelity amplifier that is designed to accurately preserve all of the energy of a live listening experience.\u003c\/strong\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA M750 is rated at 750 watts into 8 ohms and will deliver even more into 4 ohms. This is the amplifier for those that want the ultimate in amplifier headroom. The amp can be comfortably paired with any 8 ohm or 4 ohm speaker, including speakers demanding a LOT of power. \u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAlong with massive power, the DVA M750 has awesome dynamic range, definition, and transparency while maintaining the nuances and details of the original music recording. The sound stage is life size and so pure that you hear the music in a way that will startle and please you.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe DVA M750 includes a differential XLR input jack, a parallel set of improved high-quality 5-way gold plated speaker binding posts, and a standard IEC power socket. The DVA M750 is designed to be used with a source providing XLR outputs, like our stunning \u003ca href=\"https:\/\/avahifi.com\/collections\/d-to-a-converters\/products\/dva-digital-preamplifier\" title=\"DVA Digital Preamplifier\" target=\"_blank\"\u003eDVA Digital Preamplifier\u003c\/a\u003e. For use with RCA sources, a separate active or transformer RCA to XLR converter like our \u003ca href=\"https:\/\/avahifi.com\/collections\/accessories\/products\/dva-r2x\" title=\"R2X single-ended to differential converter\" target=\"_blank\"\u003eR2X single-ended to differential converter\u003c\/a\u003e will be required.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe faceplate of the subtle yet stylish chassis is 10mm thick, clear anodized aluminum.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAudio Circuits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA M750 incorporates our unique Single Ended Transistor (SET) voltage amplifier design. The amplifier consists of an amazingly effective transistor front end followed by a very fast and rugged power MOSFET current amplifier section. Bandwidth is flat from 3Hz to 70KHz.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eIn addition, the DVA M750 is a fully differential design, which means it cancels common mode noise and distortion for more accurate reproduction. It's a class AB amplifier but operates as class A at normal listening levels.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe combination of our electronic and mechanical design ideas allows the amplifier to run cooler, last longer, and be amazingly fault tolerant. Eight double-die MOSFET output transistors handle difficult speaker loads 4 ohms and up.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePower Supply and Layout\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA M750 has an oversized, high-capacity toroidal power transformer whose output is voltage regulated to provide incredible dynamic range, bass extension, transient detail, and air. All the power supply parts are selected for long life and reliability and operate well within their technical specification ratings.\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe DVA M750 has regulated power supplies for all areas of the amplifier including the output transistors, which provides unequaled bass control and micro dynamics. There are no unregulated power supplies -- anywhere!\u003cbr data-mce-fragment=\"1\"\u003e\u003cbr data-mce-fragment=\"1\"\u003eThe DVA M750 operates with standard 120 volt power and includes a polarized 120V IEC power cord.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDimensions: 17\" wide, 12.5\" deep, 6\" high. Shipping weight is 38 pounds each.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eFor stereo operation you must purchase 2 amplifiers.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eAudiophilia rates these as an \u003ca href=\"https:\/\/www.audiophilia.com\/reviews\/2023\/4\/3\/kb8llwi7wcd825zi32ii2lybjshajl\"\u003eAudiophillia Star Component\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003ePositive Feedback \u003ca href=\"https:\/\/positive-feedback.com\/reviews\/hardware-reviews\/audio-by-van-alstine-m750-amplifiers\/\"\u003eWriters Choice Award\u003c\/a\u003e.\u003c\/p\u003e","brand":"Audio by Van Alstine","offers":[{"title":"Default Title","offer_id":40323864002621,"sku":"","price":2799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/products\/Amp_DSC_1361.jpg?v=1666285655"},{"product_id":"dva-set-500-stereo-power-amplifier","title":"DVA SET 500 Stereo Power Amplifier","description":"\u003cp style=\"text-align: center;\" data-mce-fragment=\"1\" data-mce-style=\"text-align: center;\"\u003e\u003cspan style=\"color: #ff2a00;\" data-mce-style=\"color: #ff2a00;\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eShipping included in price for continental U.S.\u003c\/strong\u003e\u003c\/span\u003e\u003cspan style=\"color: #000000;\" data-mce-style=\"color: #000000;\"\u003e\u003cem\u003e\u003cstrong data-mce-fragment=\"1\"\u003e\u003c\/strong\u003e\u003c\/em\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eThe DVA SET 500 has all the magical sound of our other SET amplifiers. Like those amps, it's designed to accurately preserve all the energy of a live listening experience.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA SET 500 is rated at 250 watts per channel into 8 ohms and will deliver significantly more into 4 ohms. It has awesome dynamic range, definition, and transparency while maintaining the nuances of the original music recording. The sound stage is life size and so pure that you hear the music in a way that will startle and please you.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA SET 500 includes a pair of machined and gold plated RCA input jacks, improved high-quality 5-way gold plated speaker binding posts, and a standard IEC power socket. The faceplate of the subtle yet stylish chassis is 10mm thick, clear anodized aluminum.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eAudio Circuits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eDVA SET 500 incorporates our unique Single Ended Transistor (SET) voltage amplifier design. The amplifier consists of an amazingly effective transistor front end followed by a very fast and rugged power MOSFET current amplifier section. Bandwidth is flat from 3Hz to 70KHz. The DVA SET 500 is a class AB amplifier but operates as class A at normal listening levels.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe combination of our electronic and mechanical design ideas allows the amplifier to run cooler, last longer, and be amazingly fault tolerant. Four double-die MOSFET output transistors per channel handle difficult speaker and will provide plenty of power for any rational loudspeaker 4 ohms and up.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003ePower Supply Circuits\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA SET 500 has an oversized, high-capacity toroidal power transformer whose output is voltage regulated to provide incredible dynamic range, bass extension, transient detail, and air. All the power supply parts are selected for long life and reliability and operate well within their technical specification ratings.\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA SET 500 has regulated power supplies for all areas of the amplifier including the output transistors, which provides unequaled bass control and micro dynamics. There are no unregulated power supplies -- anywhere!\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003eThe DVA SET 500 operates with standard 120 volt power and includes a polarized 120V IEC power cord.\u003cbr\u003e\u003c\/p\u003e\n\u003cp data-mce-fragment=\"1\"\u003e\u003cstrong data-mce-fragment=\"1\"\u003eDimensions\u003c\/strong\u003e: 17\" wide, 12.5\" deep, 6\" high. Shipping weight is 38 pounds.\u003c\/p\u003e","brand":"Audio by Van Alstine","offers":[{"title":"120 VAC","offer_id":40323904569405,"sku":"","price":2799.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/products\/Amp_DSC_1361_f014c9f6-1185-4a5d-af4d-9d7d19d7e8ab.jpg?v=1666286539"},{"product_id":"ca1-control-amplifier","title":"CA1 Control Amplifier","description":"\u003cp\u003e\u003cstrong\u003eThe CA1 Control Amplifier is a next-generation complete amplifier system using our newly developed Advanced Nested Architecture (ANA). You only need to add a turntable, DAC, or similar source and a set of loudspeakers (or headphones) to create a fully functional music system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CA1 Control Amplifier oozes with the transparency, dynamic range, linearity, and pure music for which Audio by Van Alstine is known. Listen to all of your recordings again and you will hear acoustic space and musical nuance in a much more real and involving way. The cost is lower and the performance much higher than you have any right to expect.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003eThe CA1 control amplifier is one of the first products to use our \u003cstrong\u003eANA technology\u003c\/strong\u003e, delivering stunning linearity and sound quality previously unimaginable at its price. It generates up to 55 watts per channel into 8Ω and is suitable for nominal 4Ω loads and up.\u003c\/p\u003e\n\u003cp\u003eA high-performance\u003cstrong\u003e moving magnet phono preamplifier\u003c\/strong\u003e is standard, as is an equally high-performance \u003cstrong\u003eheadphone amplifier\u003c\/strong\u003e with a 1\/4\" headphone output. It has four gold-plated RCA inputs, one of which for phono use. The speaker outputs are heavy-duty 5-way binding posts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemote control\u003c\/strong\u003e is provided for power, volume, and muting. A 12V trigger output is also provided for those wanting to use the amplifier in highly integrated system setups.\u003c\/p\u003e\n\u003ch3\u003eAmplifier Circuits\u003c\/h3\u003e\n\u003cp\u003eOur \u003ca href=\"https:\/\/mithat.avahifi.com\/blog\/2024\/09\/ana-what-it-is\" title=\"Advanced Nested Architecture: what it is, what it isn't, and whether it's important\"\u003eAdvanced Nested Architecture\u003c\/a\u003e (ANA) technology is a major advancement in audio power amplifiers that brings you ever closer to the original source. Unlike more conventional class AB amplifiers, ANA employs \u003cem\u003etwo\u003c\/em\u003e independent control mechanisms to manage circuit nonlinearities. The first mechanism provides the kind of correction found in typical class AB audio amplifiers. To this, ANA adds a second global correction circuit that reduces nonlinearities to the vanishing point. We are confident that you will find the results exhilarating.\u003c\/p\u003e\n\u003ch3\u003ePower Supply Circuits\u003c\/h3\u003e\n\u003cp\u003eTo fully support the incredible dynamic range, bass extension, and transient detail the CA1 Control Amplifier's audio circuits are capable of, the amplifier uses a linear power supply based around a high-capacity toroidal power transformer. All of the power supply parts are selected for long life and reliability and operate well within their technical specification ratings.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThe CA1 Control Amplifier operates with standard 120V AC power. It has an IEC power socket, and we include a 120V IEC power cord.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePower output\u003c\/strong\u003e: 55 watts per channel into 8Ω. 85 watts per channel into 4Ω.\u003cbr\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e: Three line-level stereo inputs and one stereo moving magnet phono input on gold-plated RCA jacks.\u003cbr\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e: 47 kΩ (phono and line inputs)\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cbr\u003eMaximum system gain\u003c\/strong\u003e: 36.4dB (line-level inputs to speaker outputs)\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePhono preamplifier gain\u003c\/strong\u003e: 40dB at 1 kHz (i.e., 76.4dB at 1 kHz max. system gain from phono input to speaker outputs)\u003cbr\u003e\u003cstrong\u003eHeadphone amplifier gain\u003c\/strong\u003e: 12dB\u003cstrong\u003e\u003cbr\u003eHeadphone minimum impedance\u003c\/strong\u003e: 32Ω\u003cbr\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 17\" wide, 12\" deep, 3.5\" high. Shipping weight is 20 pounds.\u003c\/p\u003e","brand":"Audio by Van Alstine","offers":[{"title":"Default Title","offer_id":41022698651709,"sku":null,"price":1599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/files\/CA1-front.jpg?v=1708556942"},{"product_id":"np1-power-amplifier","title":"NP1 Power Amplifier","description":"\u003cp\u003e\u003cstrong\u003eThe NP1 Power Amplifier is the first stereo power amplifier to use Audio by Van Alstine's class-defining Advanced Nested Architecture (ANA).\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe NP1 Power Amplifier oozes with the transparency, dynamic range, linearity, and pure music for which Audio by Van Alstine is known. Listen to all of your recordings again and you will hear acoustic space and musical nuance in a much more real and involving way. The cost is lower and the performance much higher than you have any right to expect.\u003c\/p\u003e\n\u003ch3\u003eAmplifier Circuits\u003c\/h3\u003e\n\u003cp\u003eThe NP1 Power Amplifier uses our \u003ca title=\"Advanced Nested Architecture: what it is, what it isn't, and whether it's important\" href=\"https:\/\/mithat.avahifi.com\/blog\/2024\/09\/ana-what-it-is\"\u003eAdvanced Nested Architecture\u003c\/a\u003e (ANA) technology to deliver stunning linearity and sound quality previously unimaginable at its price. It generates up to 55 watts per channel into 8Ω and is suitable for nominal 4Ω loads and up.\u003c\/p\u003e\n\u003cp\u003eANA is a major advancement in audio power amplifiers that brings you ever closer to the original source. Unlike more conventional class AB amplifiers, ANA employs \u003cem\u003etwo\u003c\/em\u003e independent control mechanisms to manage circuit nonlinearities. The first mechanism provides the kind of correction found in typical class AB audio amplifiers. To this, ANA adds a second global correction circuit that reduces nonlinearities to the vanishing point. We are confident that you will find the results exhilarating.\u003c\/p\u003e\n\u003ch3\u003ePower Supply Circuits\u003c\/h3\u003e\n\u003cp\u003eTo fully support the incredible dynamic range, bass extension, and transient detail the NP1 Power Amplifier's audio circuits are capable of, the amplifier uses a linear power supply based around a high-capacity toroidal power transformer. All of the power supply parts are selected for long life and reliability and operate well within their technical specification ratings.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThe NP1 Power Amplifier operates with standard 120V AC power. It has an IEC power socket, and we include a 120V IEC power cord. We don't recommend using the NP1 with unbuffered \"passive preamplifiers\" or other sources with an output impedance greater than 1kΩ.\u003cbr\u003e\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePower output\u003c\/strong\u003e: 55 watts per channel into 8Ω. 85 watts per channel into 4Ω.\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e: One line-level stereo input on gold-plated RCA jacks.\u003cbr\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e: 50kΩ\u003cbr\u003e\u003cstrong\u003eMaximum source impedance\u003c\/strong\u003e: 1kΩ. Not suitable for use with unbuffered \"passive preamplifiers.\"\u003cbr\u003e\u003cstrong\u003eAmplifier gain\u003c\/strong\u003e: 26.3dB\u003cbr\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 17\" wide, 12\" deep, 3.5\" high. Shipping weight is 20 pounds.\u003c\/p\u003e\n\u003ch3\u003eReviews\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003ePart-Time Audiophile \u003ca title=\"Audio by Van Alstine NP1 Best Power Amplifiers 2025\" href=\"https:\/\/pt.audio\/2025\/05\/30\/ptaudios-best-power-amplifiers-buyers-guide-summer-2025\/\" target=\"_blank\"\u003e2025 Best Power Amplifiers\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003ePart-Time Audiophile \u003ca href=\"https:\/\/pt.audio\/2024\/12\/06\/2025s-best-power-buyers-guide-2025\/\" title=\"Audio by Van Alstine NP1 Best Power Amplifiers 2024\" target=\"_blank\"\u003e2024 Best Power Amplifiers\u003c\/a\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003ca href=\"https:\/\/www.youtube.com\/watch?v=TkwEKzV2giU\" title=\"NP1 Power Amplifier: Audio By Van Alstine - Neutral \u0026amp; Transparent\" rel=\"noopener\" target=\"_blank\"\u003ePotato Fi Reviews\u003c\/a\u003e, October 2024.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Audio by Van Alstine","offers":[{"title":"Default Title","offer_id":41043603488829,"sku":null,"price":1199.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/files\/NP1_DSC_0196.jpg?v=1721081885"},{"product_id":"demo-ca1-control-amplifier","title":"Demo CA1 Control Amplifier","description":"\u003cp\u003e\u003cstrong\u003eSave 10% off of new with this demo unit.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eThe CA1 Control Amplifier is a next-generation complete amplifier system using our newly developed Advanced Nested Architecture (ANA). You only need to add a turntable, DAC, or similar source and a set of loudspeakers (or headphones) to create a fully functional music system.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eThe CA1 Control Amplifier oozes with the transparency, dynamic range, linearity, and pure music for which Audio by Van Alstine is known. Listen to all of your recordings again and you will hear acoustic space and musical nuance in a much more real and involving way. The cost is lower and the performance much higher than you have any right to expect.\u003c\/p\u003e\n\u003ch3\u003eFeatures\u003c\/h3\u003e\n\u003cp\u003eThe CA1 control amplifier is one of the first products to use our \u003cstrong\u003eANA technology\u003c\/strong\u003e,  delivering stunning linearity and sound quality previously unimaginable at its price. It generates up to 55 watts per channel into 8Ω and is suitable for nominal 4Ω loads and up.\u003c\/p\u003e\n\u003cp\u003eA high-performance\u003cstrong\u003e moving magnet phono preamplifier\u003c\/strong\u003e is standard, as is an equally high-performance \u003cstrong\u003eheadphone amplifier\u003c\/strong\u003e with a 1\/4\" headphone output. It has four gold-plated RCA inputs, one of which for phono use. The speaker outputs are heavy-duty 5-way binding posts.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRemote control\u003c\/strong\u003e is provided for power, volume, and muting. A 12V trigger output is also provided for those wanting to use the amplifier in highly integrated system setups.\u003c\/p\u003e\n\u003ch3\u003eAmplifier Circuits\u003c\/h3\u003e\n\u003cp\u003eOur Advanced Nested Architecture (ANA) technology is a major advancement in audio power amplifiers that brings you ever closer to the original source. Unlike more conventional class AB amplifiers, ANA employs \u003cem\u003etwo\u003c\/em\u003e independent control mechanisms to manage circuit nonlinearities. The first mechanism provides the kind of correction found in typical class AB audio amplifiers. To this, ANA adds a second global correction circuit that reduces nonlinearities to the vanishing point. We are confident that you will find the results exhilarating.\u003c\/p\u003e\n\u003ch3\u003ePower Supply Circuits\u003c\/h3\u003e\n\u003cp\u003eTo fully support the incredible dynamic range, bass extension, and transient detail the CA1 Control Amplifier's audio circuits are capable of, the amplifier uses a linear power supply based around a high-capacity toroidal power transformer. All of the power supply parts are selected for long life and reliability and operate well within their technical specification ratings.\u003c\/p\u003e\n\u003ch3\u003eAdditional Information\u003c\/h3\u003e\n\u003cp\u003eThe CA1 Control Amplifier operates with standard 120V AC power. It has an IEC power socket, and we include a 120V IEC power cord.\u003c\/p\u003e\n\u003ch3\u003eSpecifications\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003ePower output\u003c\/strong\u003e: 55 watts per channel into 8Ω. 85 watts per channel into 4Ω.\u003cbr\u003e\u003cstrong\u003eInputs\u003c\/strong\u003e: Three line-level stereo inputs and one stereo moving magnet phono input on gold-plated RCA jacks.\u003cbr\u003e\u003cstrong\u003eInput impedance\u003c\/strong\u003e: 47 kΩ (phono and line inputs)\u003cstrong\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cbr\u003eMaximum system gain\u003c\/strong\u003e: 36.4dB (line-level inputs to speaker outputs)\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\u003cstrong\u003ePhono preamplifier gain\u003c\/strong\u003e: 40dB at 1 kHz (i.e., 76.4dB at 1 kHz max. system gain from phono input to speaker outputs)\u003cbr\u003e\u003cstrong\u003eHeadphone amplifier gain\u003c\/strong\u003e: 12dB\u003cstrong\u003e\u003cbr\u003eHeadphone minimum impedance\u003c\/strong\u003e: 32Ω\u003cbr\u003e\u003cstrong\u003eDimensions\u003c\/strong\u003e: 17\" wide, 12\" deep, 3.5\" high. Shipping weight is 20 pounds.\u003c\/p\u003e","brand":"Audio by Van Alstine","offers":[{"title":"Default Title","offer_id":41745388404797,"sku":null,"price":1440.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/files\/CA1-front.jpg?v=1708556942"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2619\/1634\/collections\/ampblackface.jpg?v=1525109364","url":"https:\/\/avahifi.com\/collections\/solid-state-power-amplifiers\/used.oembed","provider":"Audio by Van Alstine","version":"1.0","type":"link"}