{"product_id":"fiio-k11-compact-desktop-r2r-dac-headphone-amplifier-black","title":"FiiO K11: Compact Desktop R2R DAC \u0026 Headphone Amplifier (Black)","description":"\u003ch2\u003eOverview\u003c\/h2\u003e\n\u003cp\u003eThe FiiO K11 combines a compact desktop footprint with a sophisticated R2R DAC and headphone amplifier. At its heart sits a four-channel fully differential 24-bit R2R resistor array, built from 192 high-precision ultra-thin film resistors with 0.1% accuracy. This architecture aims to deliver a clean, low-noise signal path that helps instruments and voices stay crisp against a dark background, elevating the listening experience across genres.\u003c\/p\u003e\n\n\u003ch3\u003eTwo ways to shape your sound: NOS and OS\u003c\/h3\u003e\n\u003cp\u003eSwitchable operating modes let you tailor the character of your listening session. In NOS (Non-Oversampling) mode, the device preserves the original sampling behavior, producing a musical and relaxed presentation. In OS (Oversampling) mode, signals are processed through oversampling up to 384 kHz, revealing extra detail and clarity. You can freely switch to suit tracks or headphones.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNOS mode emphasizes musicality and flow.\u003c\/li\u003e\n  \u003cli\u003eOS mode enhances detail, air, and precision in the upper frequencies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003ePower and drive for demanding headphones\u003c\/h3\u003e\n\u003cp\u003eThe K11 houses a purpose-built amplifier section with TI OPA1642 low-pass filters and dual SGM8262 operational amplifiers. With up to 1300 mW per channel, it has ample headroom to drive a wide range of headphones. A precision NJW1195A digital volume control provides precise volume steps with low distortion across channels.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eThree gain levels help pair with sensitive IEMs or high-impedance cans.\u003c\/li\u003e\n  \u003cli\u003eThe low-noise supply design minimizes ripple for cleaner highs and defined bass.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eTwo headphone outputs, one versatile chassis\u003c\/h3\u003e\n\u003cp\u003eA single-ended 6.35 mm output and a balanced 4.4 mm output on a compact desktop unit give you flexible listening options. Whether you plug in studio cans or pocket-friendly IEMs, you can enjoy high-resolution audio across formats with ease.\u003c\/p\u003e\n\n\u003ch3\u003eHigh-resolution audio processing\u003c\/h3\u003e\n\u003cp\u003eThe K11 supports PCM up to 32-bit\/384 kHz and DSD up to DSD256, with DSD offered in native output mode and internally converted to PCM for R2R processing. This enables faithful reproduction of a wide range of sources, from high-res streams to digital files.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDSD256 support for enthusiasts who use lossless files.\u003c\/li\u003e\n  \u003cli\u003eInternal PCM conversion preserves compatibility with the R2R path.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eClean power, quiet operation\u003c\/h3\u003e\n\u003cp\u003eA professionally designed low-noise power supply features 17 LDO regulators and two DC-DC converters, plus an external 12 V supply. This design reduces noise and distortion, helping the signal path stay faithful to the source and maintaining a controlled sonic backdrop.\u003c\/p\u003e\n\n\u003ch2\u003eWhat to connect and how it fits your desk\u003c\/h2\u003e\n\u003cp\u003eCrafted for desktop setups, the K11 blends well with a range of audio gear, from compact DACs to high-end headphones. Its compact dimensions and sturdy build make it a practical upgrade for home listening, a dedicated workspace, or a compact studio desk.\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 audio formats does the FIIO K11 support?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Supports PCM up to 32-bit\/384 kHz and DSD256; DSD can be native with mode settings.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What makes the K11 suitable for desktop setups?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Dual headphone outputs, ample drive, and a low-noise power supply suit varied headphones.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"FiiO","offers":[{"title":"Default Title","offer_id":48406900441245,"sku":"B0D9BB5RL1","price":242.72,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0766\/9596\/1757\/files\/fiio-k11-front-panel-ports.jpg?v=1781145959","url":"https:\/\/nexoltic.com\/products\/fiio-k11-compact-desktop-r2r-dac-headphone-amplifier-black","provider":"Nexoltic","version":"1.0","type":"link"}