On several STUDIO machines, manufacturers have removed the local monitoring control. AMC403 makes up this lack, in giving to the operator the possibility to monitor, control or settle a local source. The operator will  also be able to check the level and the phase.

A start interface allows to create pulses or hold states for all types of machine, and to keep the automatic mute when it goes on air. The control modulation is available either in amplifier output for passive speaker, or under +6 dBu format for amplified speaker.

The four inputs are mixed and an Antenna red interface affords to transfer all to a micro openning. A stereo synchronous output of the mixing is also available.