The Fosi Audio ZH3 combines a high-performance DAC, headphone amplifier, and preamplifier in one compact desktop unit. Featuring the AKM4493SEQ DAC and XMOS XU316 processor, it delivers pristine audio up to PCM 768kHz/32bit and DSD512 with ultra-low distortion. Its self-developed fully balanced amplifier circuitry and noise-reducing components ensure an exceptionally clean sound floor at just 1.9μV noise. With both 6.35mm single-ended and 4.4mm balanced outputs, plus a versatile 3-level gain switch, it drives headphones from 16Ω to 300Ω with ease, making it ideal for critical listening on a wide range of HiFi headphones and active speakers.