{"product_id":"singxer-sa-2-fully-balanced-headphone-amplifier","title":"Singxer SA-2 Fully-balanced Headphone Amplifier","description":"\u003ch1\u003e\u003cstrong\u003eSingxer SA-2 Fully-balanced Headphone Amplifier\u003c\/strong\u003e\u003c\/h1\u003e\n \u003cp\u003eThe SA-2 picks up where the SA-1 left off: same pragmatic exterior but with radically upgraded internals. With doubled output power, lower distortion, and improved heat management, it’s a balanced headphone amplifier and preamp designed for those who like their music honest, detailed, and powerful. Whether you’re running high-impedance headphones or sensitive IEMs, the SA-2 delivers the clean current and headroom to drive them all with confidence.\u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\n \u003cstrong\u003eMore power to play with\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h2\u003e\n \u003cp\u003eThe SA-2’s output power boasts 10W into 32Ω, topping out at 15W into 20Ω. That means effortless control and dynamic range even with power-hungry planar headphones. It’ll drive anything down to 8Ω without issue.\u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\u003cstrong\u003eDistortion that barely registers\u003c\/strong\u003e\u003c\/h2\u003e\n \u003cp\u003eCircuit optimizations and a new DC servo design bring the SA-2’s THD+N down to -117dB at 1kHz under an 8W load. \u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\n \u003cstrong\u003eCooler heads prevail\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h2\u003e\n \u003cp\u003eA copper block and aluminum alloy heat sink work together to pull heat away from the circuit. The result is steady thermal performance even when you’re deep into a long listening session.\u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\n \u003cstrong\u003eClass-A sweetness\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h2\u003e\n \u003cp\u003eAt lower loads, the SA-2 runs in pure Class A, delivering that lush, harmonically rich tone that Class-A fans adore. Above 64Ω, nearly all its output power stays Class A, smooth, full, and beautifully controlled.\u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\n \u003cstrong\u003eGain staging done right\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h2\u003e\n \u003cp\u003eWhether you’re using balanced or single-ended sources, the SA-2’s gain options keep things flexible. Choose from low or high gain across configurations for the perfect balance between noise performance and drive power.\u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\n \u003cstrong\u003eUltra-low noise floor\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h2\u003e\n \u003cp\u003eAt low gain, the SA-2’s noise floor measures just 500nV RMS A-weighted (20–22kHz). Even the most sensitive IEMs will stay dead quiet between notes. \u003cbr\u003e\u003c\/p\u003e\n \u003ch2\u003e\n \u003cstrong\u003eGround control\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h2\u003e\n \u003cp\u003eA new GND\/LIFT mode switch helps eliminate hum in complex systems. If you’ve ever chased a ground loop through a chain of balanced gear, this small switch will feel like a big relief.\u003cbr\u003e\u003c\/p\u003e\n \u003ch3\u003e\n \u003cstrong\u003eProduct highlights\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eOutput power up to 10W @32Ω, 15W @20Ω\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eTHD+N as low as -117dB @1kHz (8W, 32Ω)\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eSNR\/DNR \u0026gt;146dB A-weighted\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eClass A operation for higher-impedance loads\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eCopper + aluminum hybrid heat dissipation design\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eUltra-low noise floor: 500nV RMS A-weighted\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eGND\/LIFT mode switch for ground loop management\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eOptimized PCB routing and DC servo design\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eAdjustable gain for balanced and single-ended modes\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eOutput impedance as low as 0.15Ω (balanced, Low-Z mode)\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\n \u003cstrong\u003eSpecs\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eOutput power: 10W @32Ω, 15W @20Ω\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eMinimum load: 8Ω\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eDistortion:\u003cbr\u003e\n \u003cul\u003e\n \u003cli\u003eTHD+N -125dB @1kHz A-weighted, 5.2V RMS preamp\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eTHD+N -117dB @1kHz, 32Ω @8W balanced headphone amp\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eNoise floor: 500nV RMS A-weighted (20–22kHz)\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eSNR\/DNR: \u0026gt;146dB A-weighted\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eFrequency response: 20Hz–80kHz ±0.1dB\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eClass A mode:\u003cbr\u003e\n \u003cul\u003e\n \u003cli\u003e16Ω \u0026lt;400mW\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003e32Ω \u0026lt;800mW\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003e64Ω \u0026lt;1600mW\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eAbove 64Ω: nearly full Class A power\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eGain (dB):\u003cbr\u003e\n \u003cul\u003e\n \u003cli\u003eSE input → SE output: 0 \/ +12.8\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eSE input → BAL output: +6 \/ +18.8\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eBAL input → SE output: -6 \/ +6.8\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eBAL input → BAL output: 0 \/ +12.8\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eInput impedance:\u003cbr\u003e\n \u003cul\u003e\n \u003cli\u003eSE: 33kΩ\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eBAL: 20kΩ\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eInput sensitivity:\u003cbr\u003e\n \u003cul\u003e\n \u003cli\u003eBAL→BAL: High 4.2V RMS \/ Low 18V RMS\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eSE→BAL: High 2.1V RMS \/ Low 9V RMS\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003eOutput impedance:\u003cbr\u003e\n \u003cul\u003e\n \u003cli\u003eLow-Z mode: 0.15Ω (BAL) \/ 1.1Ω (SE)\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eHigh-Z mode: 10Ω (BAL) \/ 11Ω (SE)\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003c\/li\u003e\n \u003cli\u003ePreamp output impedance: 150Ω (BAL), 75Ω (SE)\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eHeat dissipation: Copper + aluminum alloy hybrid\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eFrequency response: 20Hz–80kHz ±0.1dB\u003cbr\u003e\n \u003c\/li\u003e\n \u003c\/ul\u003e\n \u003ch3\u003e\n \u003cstrong\u003eWhat’s included\u003c\/strong\u003e\u003cbr\u003e\n \u003c\/h3\u003e\n \u003cul\u003e\n \u003cli\u003eSA-2 headphone amplifier\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003ePower cable\u003cbr\u003e\n \u003c\/li\u003e\n \u003cli\u003eUser manual\u003c\/li\u003e\n \u003c\/ul\u003e","brand":"Singxer","offers":[{"title":"Default Title","offer_id":46866216124591,"sku":"APS-1135-1","price":629.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0734\/6415\/2239\/files\/apos-audio-singxer-headphone-amp-singxer-sa-2-fully-balanced-headphone-amplifier-1197395645_b10081d8-0aac-484e-a2a3-c023bc1635b7.jpg?v=1777716282","url":"https:\/\/freshized.com\/products\/singxer-sa-2-fully-balanced-headphone-amplifier","provider":"Freshized","version":"1.0","type":"link"}