RS-232 and IR adapter easily retrofit any amplifier with a Remote Volume Control (RVC) port to receive RS-232 or Infrared volume commands. Easy-to-use accessory interfaces with any power amplifier equipped with a Remote Volume Control (RVC) Euro block connector such as our CVA25, CVA50, CVA100-2 and CVA50MX models to remotely manage volume. This handy interface brings increased accessibility and convenience to a multitude of sound reinforcement environments and enables consultants, system designers, and integrators to easily add a routinely asked for feature to both existing and forthcoming designs. The Stewart Audio RVC-RS232 interface enables any amplifier with a 5-12VDC RVC connector to be remotely controlled using standard RS-232 commands. The commands available are Increase, Decrease or Mute Volume and include the ability to send discrete values. By adding the optionally available IR plug-in option, the system adds the convenience of infrared remote (IR) control.