The M160 adheres to tried and proven mixer design with the channel inputs laid out on the left, master outputs to the middle/right, and auxiliary send/return controls on the far right. Two peak-reading LED bar meters are provided above the master faders, which indicate the left and right output signal levels. Monitoring of input signals before the master faders is taken care of by two small pre-fader LEDs located just below the meters. These glow green when channel signals are above —20dB and red at the onset of clipping (—6dB). The same system is employed on each of the 16 input channels to monitor the input signal peaks and is used in conjunction with the input channel Sensitivity control to set the optimum signal level.