{"product_id":"aiyima-a20-2-1-channel-power-amplifier-300wx2-hifi-fully-balanced-hpf-sub-out-12v-trigger","title":"AIYIMA A20 2.1 Channel Power Amplifier – 300Wx2 HiFi, Fully Balanced, HPF + Sub Out, 12V Trigger","description":"\u003ch2\u003eAIYIMA A20: Refined 2.1 Channel Power Amplifier for Dedicated Listening\u003c\/h2\u003e\n\u003cp\u003eThe AIYIMA A20 is engineered for listeners who value clarity, control, and reliable power. Built on a PFFB+TPA3255 Class D platform, this amplifier combines precision electronics with premium components to deliver a clean, detailed backdrop and decisive bass when paired with compatible speakers. Expect a quiet sound floor and faithful reproduction of transients across genres, enabling you to hear subtle textures and micro-dynamics in familiar tracks.\u003c\/p\u003e\n\u003cp\u003eCore specs translate into real-world listening: a signal-to-noise ratio of 116 dB and THD+N as low as 0.002% help minimize masking and keep voices and instruments crisp. The design also features LME49720 op-amps and a swappable-op-amp concept, offering a touch of customization for enthusiasts who enjoy tailoring their chain while preserving the essence of the original recording.\u003c\/p\u003e\n\u003ch3\u003eFlexible 2.1 hub for system tuning\u003c\/h3\u003e\n\u003cp\u003eThe A20 acts as a versatile 2.1 system hub with an adjustable High-Pass Filter (HPF) from 60 to 200 Hz and a dedicated Sub Output. This pairing protects main speakers from bass distortion, enhances mid-range clarity, and supports a powerful, articulate low end when you match the sub to your room and preferences.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eReference-grade performance yields a quiet background and detailed resolution.\u003c\/li\u003e\n\u003cli\u003eHPF and Sub Out enable precise 2.1 system balancing.\u003c\/li\u003e\n\u003cli\u003eBalanced XLR\/RCA inputs with a simple toggle for source matching.\u003c\/li\u003e\n\u003cli\u003e12V trigger supports seamless automation with compatible gear.\u003c\/li\u003e\n\u003cli\u003eDurable, premium build: 4-layer PCB with high-quality German WIMA and Japanese Rubycon capacitors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003ePremium build, flexible integration, and ecosystem fit\u003c\/h3\u003e\n\u003cp\u003eThe A20’s chassis centers on a four-layer gold-sunk PCB and premium components to sustain performance over time. BYPASS mode allows use with an external preamp, while a +3 dB gain switch helps align levels with diverse sources. The design also embraces op-amp flexibility and a dedicated 12V trigger for easy automation in modern setups. The pairing with AIYIMA T20 Tube Preamp is highlighted as a pathway to a balanced, hybrid listening experience that blends warmth with solid-state power.\u003c\/p\u003e\n\u003ch3\u003eReal-world use scenarios\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eCompact hi-fi rooms where a dedicated amp powers a two-way front and a sub for cohesive bass.\u003c\/li\u003e\n\u003cli\u003eHome theater or mixed music systems that benefit from a clean, controlled amplification stage.\u003c\/li\u003e\n\u003cli\u003eUpgrade-ready configurations with external preamps, adjustable HPF, and multiple input options.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eNote: Results depend on your speakers, room acoustics, and source quality. The A20 offers a credible upgrade path toward refined, responsive sound without promising guaranteed outcomes.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes the AIYIMA A20 suitable for a 2.1 system?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: The A20 serves as a robust hub with adjustable HPF (60–200 Hz) and Sub Out, enabling clear bass and main-channel balance.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I use an external preamp with the A20?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. BYPASS mode allows external preamps, and the 12V trigger supports automation with compatible units.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"AIYIMA","offers":[{"title":"Default Title","offer_id":48407158718621,"sku":"B0FMR7SLP4","price":234.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/aiyima-a20-power-amplifier-front-view.jpg?v=1781148693","url":"https:\/\/nexoltic.com\/products\/aiyima-a20-2-1-channel-power-amplifier-300wx2-hifi-fully-balanced-hpf-sub-out-12v-trigger","provider":"Nexoltic","version":"1.0","type":"link"}