How does the SU-1 safeguard your USB audio system?

Ever been there — you bump a device while swapping USB cables, the screen goes black, and your heart drops: Please don't be fried.

The SU-1 solves these "small but scary" problems.

Auto shut-off on overcurrent or short circuit.

USB carries both data and power. A fault can damage expensive gear. The SU-1's real-time load detection instantly cuts output the moment trouble hits. It stays quietly on guard — you may never notice it, until the day it saves you.

Galvanic isolation kills ground loop noise and grid threats at the root.

Different devices have different ground potentials. Connected via USB, ground loops create that stubborn background noise. Lightning, surges, grid anomalies — all risks. The SU-1 uses professional grade digital isolation chip to physically break the electrical connection. Noise, interference, surges, and strikes — all blocked.

One-button switching is as easy as skipping a track.

Traditional multi-source, multi-DAC setups mean crawling under desks and fumbling for ports. The SU-1 gives you three inputs and two outputs — six combinations. One button: short press for input, long press for output. Status LEDs show the active path. Switching sources becomes effortless.

You just enjoy the music. 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.