The Audio-Technica AT-MX351a 5-Channel Automatic Mixer is designed for live applications such as teleconferencing, meetings, seminars, courtroom proceedings, worship services, radio, and TV broadcasting.

The mixer features 4 microphone input channels with 48 V phantom power and 1 auxiliary RCA input jack. A built-in microprocessor controls the signal processing and allows you to set priority-select switches for each microphone input channel. The priority-select switches determine which microphones will have priority and which microphone levels will be reduced and attenuated or "locked-out" of the output when the priority microphone(s) is on. This is useful for suppressing overall system feedback, balancing microphone levels, maintaining ambient sound, and for situations when only one microphone may be on at a time or one microphone must override the others.

Multiple mixers may be daisy-chained together with the included AT8325/1.0 link cable and the automatic attenuation settings will be applied to the whole system. The mixer can be mounted in a single 19" rack space using the included rack mount adapters.