Fosi Audio Q4 Audio DAC & Headphone Amplifier

The Fosi Audio Q4 DAC and Headphone Amplifier represents a sophisticated upgrade for any desktop audio setup, offering a compact solution that transforms digital signals into rich, detailed sound. This versatile unit is ideal for audiophiles seeking to enhance their computer-based listening, home hi-fi systems, or gaming rigs, delivering a noticeable improvement over standard onboard audio outputs. Whether you are enjoying high-resolution music files, streaming services, or immersive game audio, the Q4 brings clarity and depth to every listening session.

At its core, the Q4 employs a robust chipset comprising the SA9023, CS8412, 97220, and NE5532, ensuring precise digital-to-analogue conversion with total harmonic distortion plus noise measured at ≤0.01% for a clean, transparent signal. It supports high-resolution playback up to 24-bit/96kHz via USB and up to 24-bit/192kHz through optical or coaxial inputs, accommodating a wide range of source devices. The amplifier section drives headphones through a dedicated 3.5mm output, while the RCA line outputs deliver a robust 2.3V signal for connection to powered speakers or an external amplifier. Powered by a standard DC 5V supply and housed in a compact aluminium chassis measuring just 98 x 33 x 73.5 mm, this unit fits neatly on any desk without compromising performance. With its combination of versatile inputs, low distortion, and refined audio reproduction, the Fosi Audio Q4 is an excellent choice for those who value both form and function in their listening experience.