Introducing the Fosi Audio ZH3: All-in-One Desktop HiFi DAC/Headphone Amp/Preamp

Featuring an audiophile-grade chipset, dual-power balanced amplifier circuit, and ultra-low noise floor for high-resolution listening across headphones, active speakers, and gaming consoles

Shenzhen, China, September 25, 2025 — Fosi Audio, a leading manufacturer of affordable hi-fi audio products, announces the ZH3, an all-in-one desktop DAC, headphone amplifier, and preamp that combines high-value design with high-fidelity performance to make premium listening accessible to all. Encased in a compact, desktop-friendly footprint and built around an audiophile-grade chipset with Fosi’s custom dual-power fully balanced amplifier circuit, the ZH3 provides powerful, high-resolution sound with an exceptionally low noise floor, comprehensive connectivity, and seamless integration across headphones, active speakers, and gaming consoles.

“Our goal with the ZH3 was to take the kind of sound quality usually reserved for high-end systems and make it available in a product anyone can enjoy,” said Ryan Huang, Founder and CEO of Fosi Audio. “Compact and powerful, it is perfect for driving high-impedance headphones, pairing with active desktop speakers, or serving as the centerpiece of a complete HiFi setup.”

At the heart of the ZH3 is a carefully tuned audiophile-grade chipset built around the AKM 4493SEQ DAC for accurate high-resolution playback, an XMOS XU316 processor for fast and stable digital audio performance, and OPA1612 op-amps that ensure ultra-low distortion in the analog stage. This precision engineering powers up to 2,570mW through the 4.4mm balanced connection, with three selectable gain settings that bring out the best in everything from sensitive in-ear monitors to high-impedance over-ear headphones. With a noise floor as low as 1.9µV, the ZH3 preserves the quietest details of a recording so every nuance comes through with clarity.

Beyond raw performance, the ZH3 is built to adapt to how people actually listen. Its wide range of inputs and outputs, including USB, optical, coaxial, RCA, 4.4mm, 6.35mm, XLR, and RCA pre-outs, ensures effortless connection to headphones, active speakers, or amplifiers. Users can shape playback with bass and treble controls, explore six digital filters, or bypass EQ entirely for a purist signal path. With support for both UAC 1.0 and UAC 2.0, it flows easily between gaming consoles and high-resolution PC audio, making it a true hub for modern listening.

The ZH3 is designed with simplicity in mind. A responsive LCD and intuitive panel controls give users clear feedback in a minimalist design that fits seamlessly into any space. A multifunction knob, remote control, and 12V trigger inputs make operation effortless, whether used on its own or as part of a larger system. Paired with Fosi’s ZD3 DAC and ZA3 amplifier, the ZH3 becomes the centerpiece of a complete HiFi setup that brings high-end performance to an accessible, space-saving form.