The A-16CS Control Surface allows the A-16R Personal Mixer to be mounted in a rack with power amps, wireless transmitters, effects, etc., while still allowing a performer to have complete control over mix functions and presets from on stage. In addition, the A-16CS provides intuitive control over basic mix functions for systems in non-performance settings, turning an A-16R into a versatile remote controllable stereo digital mixer.

The user interface of the A-16CS is similar to that of the A-16II Personal Mixer, providing control over channel volume, grouping, pan, stereo spread, and master volume and tone. Up to 16 mix snapshots (stored in the A-16R) can be saved and recalled remotely from the A-16CS.

For hands-free operation, the A-16CS also includes a footswitch jack that allows a performer to use a standard dual keyboard footswitch to step through and recall the A-16R's 16 mix presets.

The A-16CS connects to the A-16R with standard Cat-5e cable via the A-Control jacks built into the A-16R and A-16CS. The A-Control cable can be up to 200 feet (61 m) in length.