FiiO K15: High-End Desktop Streaming DAC and Headphone Amplifier All‑in‑One Hi‑Fi Hub: FiiO K15 Streaming DAC & Headphone Amplifier The FiiO K15 is designed for audiophiles seeking power, versatility, and precision in a single desktop system. With dual AKM AK4497S DAC chips in a fully balanced differential circuit, it delivers pristine analog sound reproduction with ultra‑low distortion and class‑leading channel separation. Equipped with XMOS XU316 USB controller, the K15 supports up to 768 kHz/32‑bit PCM and native DSD512, plus full MQA decoding for studio‑quality streaming. As a streaming DAC, it offers Roon Ready, AirPlay, wired Gigabit Ethernet, and dual‑band Wi‑Fi (2.4G/5G), all controllable via its 3.93″ color LCD touchscreen, dual physical knobs, remote control, or the FiiO Control App (Android/iOS). It supports traditional digital inputs—USB‑A, Type‑C USB, optical, and coaxial—alongside line and balanced analog inputs, enabling full playback flexibility including local USB storage and file streaming. Powered by a hybrid dual power supply design—internally with a high-efficiency 30 W AC power module and optionally via external 12 V DC linear input—it features fully isolated analog and digital power rails with multiple LDO regulators for ultra-clean performance. Output power is remarkable: in ultra high‑gain mode, the K15 delivers up to 3 000 mW 3 000 mW (32 Ω balanced) and 1 400 mW 1 400 mW (32 Ω single‑ended), capable of driving demanding headphones with ease. Complementing this performance, the audio chain delivers ≥ 122 dB SNR (A‑weighted), noise floor below 5.3 µV, THD N , and full bandwidth up to 80 kHz with minimal attenuation. For users who enjoy sound customization, the K15 includes a 10‑band high‑precision lossless PEQ DSP, accessible via the app or web interface. You can import/export custom EQ curves or apply headphone-specific tuning. From desktop mains playback to streaming over Roon or AirPlay, high‑gain headphone driving or high‑res local playback, the FiiO K15 is a complete DAC/AMP centerpiece built for audio excellence.
