4-kanaals rotary mixer Omnitronic TRM-422 met USB en FX-send

The Omnitronic TRM-422 is a compact 4-channel rotary mixer offering USB connectivity and an FX send for routing signals to external processors. Designed for DJ booths, small venues and compact studio setups, this mixer provides four rotary channels for smooth, tactile level control and straightforward signal routing. USB allows digital audio playback or connection as a simple audio interface, while the FX send lets you insert external effects without complicated wiring. The unit’s compact footprint and rotary controls make it suitable for tight workspaces and mobile rigs.

Advantages

The mixer combines traditional rotary controls with modern connectivity, delivering precise channel trimming and simple hands-on operation. USB connectivity enables convenient playback and integration with a computer-based system, and the dedicated FX send simplifies adding external reverbs, delays or processors. Its compact design reduces desk space requirements and supports reliable operation in live, rehearsal and small studio environments.

Suitable for

Key specifications

How to use

Connect audio sources to the appropriate inputs and adjust each channel’s rotary control to set relative levels. Use the master output for the main PA or recording device and route the FX send to an external effects unit if required; return the processed signal to an available input or to the main mix depending on your routing preferences. Use the USB connection to stream digital audio from a computer or to integrate the mixer into a software-based setup. Make incremental adjustments to gain and master level to avoid clipping and preserve headroom.

Recommendations

For best results, balance input gain and master level before applying effects. Use the FX send level to control how much signal is processed externally and monitor returns to maintain a clear main mix. When using USB audio, check sample rate and latency settings in your computer audio software to ensure stable playback and synchronization.