Mixer Omnitronic EM-650B MK2 6-channel USB — Omnitronic EM-650B MK2

The Omnitronic EM-650B MK2 is a 6-channel entertainment mixer with USB connectivity designed for small events, DJ setups and live sound. It combines six input channels with standard level, equalization and routing controls and an integrated USB audio interface for connection to a computer. The compact footprint and robust build make it suitable for compact venues, streaming, rehearsal and portable installations where reliable channel control and USB recording or playback are needed.

Advantages

The mixer provides six discrete channels with individual level and tone control, allowing precise balance between microphones, line sources and DJ devices. An integrated USB audio interface simplifies recording to and playback from a computer without extra hardware. Controls are laid out for straightforward operation during live use and the unit’s compact design supports easy transport and quick setup. The build quality is aimed at repeated use in mobile or small-venue environments.

Suitable for

Key specifications

How to use

Connect microphones and line-level sources to the appropriate input channels, set gain and trim to achieve a clean input level, then use the channel faders to blend sources into the main mix. Adjust per-channel EQ to remove unwanted frequencies or to enhance clarity. Use the USB audio interface to route the stereo mix to a computer for recording or streaming, and configure the computer’s audio settings to recognize the mixer as the input/output device. Monitor the output via headphones or powered monitors and adjust master level and monitor sends as required.

Recommendations

For reliable operation, perform a soundcheck before each event to confirm input levels, EQ settings and USB connectivity. Use balanced cables where possible to reduce noise, and keep firmware or driver software (if provided) up to date on the connected computer for best USB performance.