Entertainment mixer Omnitronic EM-550B MK2 5-channel USB mixer with EQ and microphone inputs

Omnitronic EM-550B MK2 is a compact 5-channel entertainment mixer with USB connectivity designed for small venues, mobile DJs and live events. The unit combines multiple line inputs and dedicated microphone inputs with per-channel controls and basic equalization, enabling quick balancing of music sources and speech. USB connectivity provides playback from a computer and the option to record the mixer output for simple content capture or playback management.

Advantages

The mixer offers five channels with flexible input routing and easy-to-use level controls, allowing fast setup and reliable operation in bars, rehearsal rooms and event spaces. Integrated microphone inputs with independent gain and basic EQ let you optimise vocal clarity, while the USB interface simplifies audio playback and recording without additional interfaces. The compact, durable housing and clear front-panel layout support straightforward monitoring and adjustment during performances.

Suitable for

Key specifications

How to use

Connect audio sources to the appropriate line or microphone inputs, then set input gain to achieve a clean signal without clipping. Use the channel level controls and basic EQ to balance tones and match levels between sources. Select the USB input on the mixer when playing audio from a computer, and enable USB recording when you need to capture the main mix. Route the main output to your PA or powered speakers and adjust the master level to suit the venue volume.

Recommendations

For reliable operation, start with conservative gain settings and perform a soundcheck before the event. Use the dedicated microphone inputs for vocal sources and apply EQ sparingly to preserve natural sound. When recording via USB, monitor levels on the computer to avoid digital clipping and back up recordings after each session.