How does the SU-1 make your USB audio chain truly "clean"?

Ever been there — your Hi-Fi system gets more expensive, you swap sources and DACs, but the background is never black enough, details are always just out of reach. You blame cables, power, your room — but overlook one fact: the USB chain itself is a noise highway.

The SU-1 solves this invisible bottleneck.

Full galvanic isolation at both input and output ends.

When a source connects directly to a DAC via USB, ground loop noise and HF interference pour in through the USB cable. The SU-1's professional-grade digital isolators physically sever the electrical link between upstream and downstream devices. Dirty ground from the computer, switching power supply noise, HF interference — all blocked by the isolation barrier. The result: a blacker background, a more transparent soundstage. Your downstream gear finally unleashes its full potential, no longer held back by the USB chain.

Fully potted toroidal linear supply with multiple ultra-low-noise regulators.

Fully encapsulated toroidal transformer linear power supply with multiple ultra low noise regulators. It delivers up to 1000mA of clean, stable 5V power to the downstream device's USB port. By replacing the noisy standard USB power with truly clean power, it creates a truly pristine playback foundation — sound quality naturally rises to the next level.

CNC precision aluminum chassis.

Not just visually elegant. The unibody metal enclosure provides excellent EMI shielding against external RF interference, plus superior heat dissipation to keep the linear supply and isolation chips stable during extended operation. On your desk or in your rack, it's both a quiet performer and a restrained visual statement.

Simply enjoy the pure sound and understated elegance. The SU-1 handles the rest.

If Matrix Audio online store does not support purchase in your country or region, please consult your local distributor via this link: https://www.matrix-digi.com/contact/dealer . All pricing and sales information is subject to the disclosure of local distributors.