{"product_id":"aiyima-a20-balanced-stereo-power-amplifier","title":"AIYIMA A20 Balanced Stereo Power Amplifier","description":"\u003ch2 class=\"font_3 wixui-rich-text__text\"\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cmeta charset=\"utf-8\"\u003eEngineered for pure transparency and uncompromising signal integrity, the \u003cspan class=\"rQesXe MPyX\"\u003eAIYIMA A20\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e is a high-performance, Class D stereo power amplifier built for hardcore audio enthusiasts. At its core is the renowned \u003cspan class=\"rQesXe MPyX\"\u003eTexas Instruments TPA3255 amplifier IC\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e, paired with a sophisticated \u003cspan class=\"rQesXe MPyX\"\u003ePost-Filter Feedback (PFFB) architecture\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e. By wrapping the feedback loop around the output filter, the A20 eliminates traditional Class D load dependency, flattening frequency response across varying speaker impedances and driving THD+N down to an ultra-low \u003cspan class=\"rQesXe MPyX\"\u003e0.002%\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e. The true \u003cspan class=\"rQesXe MPyX\"\u003efully balanced XLR input path\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e ensures maximum common-mode noise rejection, keeping the \u003cspan class=\"rQesXe MPyX\"\u003e116dB Signal-to-Noise Ratio (SNR)\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e completely black and interference-free. Capable of delivering \u003cspan class=\"rQesXe MPyX\"\u003e300W per channel into 4Ω\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e, it features a dedicated \u003cspan class=\"rQesXe MPyX\"\u003ePure Power Amp Bypass mode\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e and a variable, hardware-switched \u003cspan class=\"rQesXe MPyX\"\u003eHigh-Pass Filter (60Hz–200Hz)\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e. This lets you offload low-end excursion to an active subwoofer, making it the ultimate foundational block for high-resolution 2.0 or 2.1 acoustic systems.\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003eThe A20 offers two input modes: unbalanced RCA and balanced XLR, each selectable on the front panel. An additional +3 dB gain can be applied to the RCA input to optimise the level according to the source. Outputs include speaker terminals and a dedicated SUB OUT output for integrating an active subwoofer. The A20 also features a 12V trigger input for synchronising its power-up with the rest of your Hi-Fi system. Finally, a bypass mode allows the A20 to be used as a pure power amplifier, bypassing its internal volume control.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eThe A20 includes an adjustable \u003c\/span\u003ehigh-pass filter\u003cspan\u003e, designed to relieve the main speakers of low frequencies and transfer this range to an active subwoofer. This internal management simplifies the setup of a 2.1 system without the need for an external filter or additional DSP.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eIn order to deliver the most faithful sound reproduction possible, the A20 uses renowned components such as Rubycon and WIMA capacitors, as well as LME49720 OPAs mounted on DIP8 to ensure interchangeability. The printed circuit board has a total of four layers, all of which are gold-plated. Finally, the aluminium chassis ensures excellent heat dissipation, contributing to the overall reliability of the amplifier.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch5 class=\"style5\"\u003eFeatures\u003cstrong\u003e \u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/h5\u003e\n\u003cdiv id=\"comp-m976bmf1\" class=\"Z_l5lU ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-m976bmf1 wixui-rich-text\"\u003e\n\u003cdiv id=\"comp-m976bmfn\" class=\"Z_l5lU ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-m976bmfn wixui-rich-text\"\u003e\n\u003csection id=\"comp-m976bmg42\" class=\"xuzjBY comp-m976bmg42 wixui-section Gzsk0j\"\u003e\n\u003cdiv class=\"comp-m976bmg42-container\"\u003e\n\u003cdiv id=\"comp-m976bmg65\" class=\"Z_l5lU ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-m976bmg65 wixui-rich-text\"\u003e\n\u003csection class=\"xuzjBY comp-m976bmgt wixui-section Gzsk0j\" id=\"comp-m976bmgt\"\u003e\n\u003cdiv class=\"comp-m976bmgt-container\"\u003e\n\u003cdiv class=\"Z_l5lU ku3DBC zQ9jDz qvSjx3 Vq6kJx comp-m976bmgv wixui-rich-text\" id=\"comp-m976bmgv\"\u003e\n\u003cul\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eTexas Instruments TPA3255 Architecture:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Utilizes the premium, high-efficiency Class D amplifier IC to deliver massive power with exceptionally low distortion and high thermal efficiency.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eAdvanced Post-Filter Feedback (PFFB):\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Loops feedback after the output filter to eliminate Class D speaker load-dependency, ensuring a ruler-flat frequency response across all speaker impedances.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eTrue Fully Balanced Signal Path:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Features dedicated XLR inputs alongside standard RCA inputs, maximizing common-mode noise rejection and cross-talk suppression for a completely black background.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eHigh-Power Output:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Delivers up to \u003cspan class=\"rQesXe MPyX\"\u003e300W per channel into 4Ω\u003c\/span\u003e (when paired with a 48V\/10A power supply), providing effortless dynamic headroom for demanding bookshelf and tower speakers.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eActive 2.1 System Integration:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Equipped with a dedicated subwoofer output and a hardware-switched, rear-adjustable High-Pass Filter (60Hz–200Hz) to offload low frequencies from your main monitors.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003ePure Power Amp Bypass:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Features a dedicated toggle switch that bypasses the front volume pot, turning the unit into a fixed-gain power amplifier for clean integration with external preamps or DACs.\u003c!--TgQPHd|||[]--\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c!--TgQPHd|||[]--\u003e\n\u003c\/li\u003e\n\u003cli class=\"Z1qcYe\"\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cstrong class=\"rQesXe MPyX\"\u003eEnthusiast-Grade Customisation:\u003c!--TgQPHd|||[]--\u003e\u003c\/strong\u003e Built with swappable dual LME49720 op-amps for hardware sound-rolling, a +3dB input gain switch for source matching, and a 12V trigger input for automated system power synchronization.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch5\u003eSpecifications\u003c\/h5\u003e\n\u003cdiv\u003e\n\u003cul class=\"KsbFXc U6u95\"\u003e\u003c\/ul\u003e\n\u003cdiv class=\"yhAwj\"\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eProduct type 2.1 amplifier\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eAmplifier type Class D\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eInputs\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e1 x Balanced stereo XLR\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e1 x Single-ended stereo RCA\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eOutputs\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eSpeaker terminals\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e1x RCA for subwoofer\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eAmplification chip TPA3255\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eRMS output power 36V\/6A\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 170W @ 4Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 100W @ 6Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 94W @ 8Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eRMS output power 48V\/5A\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 120W @ 4Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 110W @ 6Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 100W @ 8Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eRMS output power 48V\/10A\u003c\/span\u003e\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 250W @ 4Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 210W @ 6Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e2 x 150W @ 8Ω\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eTotal harmonic distortion more noise (THD+N) 0.002%\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eSignal-to-noise ratio (SNR) ≥ 116dB\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eSINAD ≥ 95dB\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eDynamic range ≥ 110dB\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eFrequency response 20Hz-20kHz (±0.4dB)\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eSupply voltage 24-48V DC\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eDimensions 190 x 142 x 46mm\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eWeight 1.1kg\u003c\/span\u003e\u003c\/span\u003e\u003cspan class=\"iNqyIf\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"yhAwj\"\u003e\u003c!--TgQPHd|||[]--\u003e\u003c\/div\u003e\n\u003ch5\u003eIncludes\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e1 x A20 Power Amplifier\u003c\/li\u003e\n\u003cli\u003e1 x Power Adapter\u003c\/li\u003e\n\u003cli\u003e1 x User Manual \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/div\u003e\n\u003ch5\u003eSupport\u003c\/h5\u003e\n\u003cul\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0018\/5257\/1723\/files\/A20_Manual.pdf?v=1756260755\" title=\"Manual\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan face=\"Verdana, Arial, Helvetica, sans-serif\" size=\"2\" color=\"2C2D59\" style=\"font-family: Verdana, Arial, Helvetica, sans-serif; font-size: small; color: #000000;\"\u003e\u003cspan class=\"totop\"\u003e\u003cspan color=\"#FFFFFF\"\u003eManual\u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch5\u003e\u003cspan\u003eAbout\u003c\/span\u003e\u003c\/h5\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan class=\"rQesXe MPyX\"\u003eAIYIMA\u003c\/span\u003e stands as a celebrated pioneer in the modern audiophile landscape, renowned for making genuine, high-fidelity sound accessible to music lovers worldwide. By seamlessly blending cutting-edge engineering—such as high-performance Texas Instruments amplification chips and premium internal capacitors—with compact, elegant desktop designs, the brand has revolutionized the budget audio market. Highly praised by audio enthusiasts and reviewers alike, AIYIMA components deliver an incredibly clean, powerful, and detailed acoustic performance that consistently punches far above their price point, proving that breathtaking sonic clarity and premium build quality do not require a luxury budget.\u003c\/p\u003e","brand":"AIYIMA","offers":[{"title":"A20 + 48V 5A PSU","offer_id":46069068988499,"sku":null,"price":31990.0,"currency_code":"INR","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1867\/3055\/files\/image_2026-09-05_131447066.png?v=1788594291","url":"https:\/\/theaudio.co\/products\/aiyima-a20-balanced-stereo-power-amplifier","provider":"The Audio Co.","version":"1.0","type":"link"}