Pure Sound
3-in-1

SU-1 is a multi source USB interface manager built for Hi-Fi and professional audio systems. It combines three core functions, multi source switching, electrical isolation, and linear regulated power at the output stage. With one-touch source switching, SU-1 cuts noise paths through independent isolation circuitry, delivering a quieter listening background while balancing everyday convenience with USB signal quality.

Multi Source
Seamless Switching

Multi Source
Seamless Switching

Two USB Type-B inputs and one USB Type-C input let you connect multiple USB sources at once. Two USB Type-A outputs can feed two DACs or digital audio interfaces. Keep everything connected, no more plugging and unplugging when you switch devices.

Isolated, Protected

Isolated
Protected

A dedicated professional grade digital isolation chip electrically separates each signal path and isolates grounds. It physically breaks the electrical connection between data, power, and ground lines at both ends. While preserving signal integrity, it provides full interface electrical isolation between sending and receiving ends. This removes ground loop noise and high frequency interference, and guards against surges and lightning damage, protecting valuable audio gear. Provide lower system noise, quieter and more open sound, and the full potential of your audio system.

Precise Power
Stable Sound

Precise Power
Stable Sound

A fully encapsulated toroidal transformer linear power supply, paired with multiple ultra low noise regulators, gives USB devices a stable, clean power foundation and reduces power noise during playback. It also provides a 5V/1000mA ultra low noise output with built in real time load detection that automatically detects overcurrent and short circuit faults and cuts output fast reliable protection for downstream audio gear.

One Touch, Full View

One Touch
Full View

The front panel uses simple single button control with input and output status LEDs for intuitive operation. Short press to cycle through USB Type-C1, Type-B1 and Type-B2 inputs. Long press to switch between USB Type-A1 and Type-A2 outputs. The status LED lights up, showing the current input and output chain clear at a glance.

Long Runs, Free Placement

Long Runs
Free Placement

USB transmission impedance is deeply optimized to reduce signal loss and support long distance USB runs. A single side cable can reach to 4 meters, with both input and output cable length up to 8 meters. Signals stay stable over long runs without data attenuation and packet loss. Sources and DACs don't need to sit next to each other, leaving more room for desktop or living room layouts and more flexible cable planning.

Expand Sound, Hear Beyond

Expand Sound
Hear Beyond

As a signal hub for switching multiple USB audio devices, it connects directly to USB equipped digital audio transports, computers, mobile devices and DACs. Flexible device pairings open up more ways to listen, giving multi device Hi-Fi systems practical connectivity and pure sound.