{"product_id":"fiio-k15","title":"FiiO K15 | Desktop DAC and Amp","description":"\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fiio-logo.webp?v=1732225693\" alt=\"FiiO logo\" style=\"display: block; margin-left: auto; margin-right: auto; width: 65%;\"\u003e\u003c\/p\u003e\n\u003ch4\u003eThe FiiO K15 Features New Dual AKM DAC Chips That Deliver Rich Detail Across the Entire Frequency Range\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eClass-AB transistor current-boosting headphone amp circuit\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePowerful 3000mW + 3000mW balanced output\u003c\/li\u003e\n\u003cli\u003eDual AKM AK4497S DAC chips\u003c\/li\u003e\n\u003cli\u003eTwo ultra-low phase noise femtosecond crystal oscillators\u003c\/li\u003e\n\u003cli\u003e3.93-Inch touchscreen\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cimg alt=\"FiiO K15 DAC\/amp in black sitting front right 3 quarter angle and K15 in silver rear right 3 quarter angle sitting on cement ledge\" height=\"1200\" width=\"2048\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fiio-k15-lifestyle.webp?v=1754577978\"\u003e\u003c\/p\u003e\n\u003ch3\u003eDual High-End AKM DAC\u003c\/h3\u003e\n\u003cp\u003eThe FiiO K15 is among the first to use two of the new high-end AKM DAC chips, the AK4479SVQ featuring the upgraded 'Velvet Sound' audio technology. The chips achieve low distortion, a wide dynamic range, and extended signal bandwidth, all at low power consumption. Rich detail is retained in both low and high frequencies for a natural and immersive sound experience.\u003c\/p\u003e\n\u003ch3\u003eDiscrete Architecture\u003c\/h3\u003e\n\u003cp\u003eWithin the K15 is a carefully designed discrete headphone amplifier circuit, featuring an OP + transistor current-boosting design. A complementary pair of the classic ON Semiconductor MJE243G\/253G delivers high current and low impedance output. This discrete circuit can achieve balanced output power up to 3000mW + 3000mW, allowing the K15 to effortlessly drive both full-sized headphones and in-ear monitors, producing smooth, natural, yet melodious sound.\u003c\/p\u003e\n\u003ch3\u003eFully Balanced Audio Circuit\u003c\/h3\u003e\n\u003cp\u003eFrom DAC decoding, low-pass filtering, and gain control to headphone amplification, the K15's audio circuit is a fully differential design. Such a design ensures wide dynamic range while also effectively reducing crosstalk, minimizing noise, and enhancing the quality of sound.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fiio-k15-circuit.webp?v=1754577867\" width=\"2048\" height=\"1200\" alt=\"FiiO K15 DAC\/amp fully balanced circuit graphic\"\u003e\u003c\/p\u003e\n\u003ch3\u003ePrecisely Designed Power Supply\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eDC\/AC Dual Power Supply\u003c\/strong\u003e\u003cbr\u003eThe K15 features a built-in next-generation 30W low-noise, high-efficiency, long-lasting, industrial and instrumentation-grade power supply. The K15 also supports external DC power supplies, allowing it to work with higher-performance linear power supplies for even higher sound quality. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSeparate Digital and Analog Section Power Supplies\u003c\/strong\u003e\u003cbr\u003eSuch a design helps to effectively avoid crosstalk between the digital and analog sections of the audio circuits. The result is better power isolation and improved anti-interference abilities.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eMulti-Stage Analog Power Supply\u003c\/strong\u003e\u003cbr\u003eThe analog section features a precisely-segmented multi-stage power supply, including stages for digital-to-analog conversion, LPF, and transistors. \u003c\/p\u003e\n\u003ch3\u003ePrecisely Restored Signals\u003c\/h3\u003e\n\u003cp\u003eInside the K15 is the industry-leading ACCUSILICON ultra-low phase noise AS318-L crystal oscillator (45.1584MHz, 49.1520MHz) that effectively reduces phase noise interference in audio signals. This promises precise reproduction of audio signals at various sampling rates. \u003c\/p\u003e\n\u003ch3\u003eDual Master Cores\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eHigh-Performance Multi-Core X2000 Processor\u003c\/strong\u003e\u003cbr\u003eThis processor is powered by a unique design featuring dual XBurst@2 cores + XBurst@0 micro-core, to deliver exceptional computing performance at ultra-low power consumption. This ensures precise audio signal processing, guaranteeing stable and smooth music playback.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eEfficient MCU ESP32-S3\u003c\/strong\u003e\u003cbr\u003eIntegrated into this chip is a high-performance Xtensa 32-bit LX7 dual-core processor and an ultra-low-power coprocessor, featuring a clock speed of up to 240MHz. This chip enables precise system control for a highly efficient and fast user experience.\u003c\/p\u003e\n\u003cp\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fiio-k15-side.webp?v=1754577476\" width=\"2048\" height=\"1200\" alt=\"FiiO K15 DAC\/amp in black sitting right side profile view of grid structure with heat dissipation\"\u003e\u003c\/p\u003e\n\u003ch3\u003eA Harmonious Fusion\u003c\/h3\u003e\n\u003cp\u003eThe K15 features FiiO's signature design blending square and round elements, merging retro elegance with cutting-edge technology. Thoughtfully crafted for both functionality and aesthetics, it displays convenient screen controls and multiple knobs for smoother operation. In addition, the grid structure enhances heat dissipation, showcasing the brilliance of its meticulous design. \u003c\/p\u003e","brand":"FiiO","offers":[{"title":"Black","offer_id":41668928077899,"sku":"FIO-K15-B","price":549.0,"currency_code":"USD","in_stock":true},{"title":"Silver","offer_id":41668928110667,"sku":"FIO-K15-S","price":549.0,"currency_code":"USD","in_stock":true},{"title":"Silver - Open Box","offer_id":42096463708235,"sku":"FIO-K15-S-OB","price":489.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0023\/9255\/5595\/files\/fiio-1-k15-blk-thumb.webp?v=1754503042","url":"https:\/\/bloomaudio.mom\/products\/fiio-k15","provider":"Bloom Audio","version":"1.0","type":"link"}