FiiO K15 Full Balance HiFi DAC and Headphone amp AK4497Sx2,Bluetooth 5.1 LDAC, Discrete Class AB Amplifier,USB Support DSD512 & PCM768kHz. Coaxial/Optical/XLR4 with Remote Control

High-end AKM DAC AK4497S*2 | Discrete Class-AB transistor current-boosting headphone amplifier circuit | Two ultra-low phase noise femtosecond crystal oscillators 3000mW+3000mW powerful output | DAC and headphone amp · Streaming media · Local playback | Fully balanced audio circuit 3.93-inch touchscreen | Infrared remote control included | 2.4G/5G dual-band WIFI + Gigabit Ethernet Flagship Dual AK4497SVQ DACs – Authentic Hi-Res Sound After years of anticipation, AKM’s legendary AK4497 returns in its upgraded AK4497SVQ version. Melody features dual automotive-grade AK4497SVQ DACs with enhanced VELVET SOUND technology, delivering ultra-low distortion, wide dynamic range, and extended frequency response. Enjoy immersive, natural audio with rich detail across lows and highs—all at reduced power consumption. Discrete Class AB Amplifier – 3000mW x2 Balanced Power Engineered with a discrete OP+transistor amplification circuit (using ON Semiconductor MJE243G/253G pairs), this amp delivers 3,000mW x2 of balanced output power. Effortlessly drive high-impedance headphones or sensitive IEMs with smooth, dynamic, and fatigue-free sound. 8-in-1 Versatility – Hi-Fi Hub for All Sources Switch between USB DAC (768kHz/32-bit, DSD512, MQA), Bluetooth (LDAC/aptX Adaptive), optical/coaxial inputs, Roon Ready/AirPlay streaming, local playback (via USB storage), and line-in/balanced analog inputs. A true all-in-one desktop solution. Dual Accusilicon Femtosecond Clocks – Ultra-Low Jitter Equipped with two AS318-B ultra-low-phase-noise femtosecond oscillators (45.1584/49.1520MHz), Melody minimizes timing errors for pristine signal accuracy across all sample rates, ensuring studio-grade clarity. Intuitive Touchscreen & Multi-Control Options Navigate effortlessly via the 3.93" touchscreen, physical knob (gain/output switching), remote control, or the companion app (FiiO Control App). User-friendly yet packed with pro features.