Peavey's Architectural Acoustics D-Series 4S is a programmable, flush-mount button-based control panel designed for the Digitool™ MX and PZS™ Series audio processing products. Designed for easy implementation, the D4S provides powerful, yet intuitive access to multiple controls within the Digitool software applications. The D4S can be configured for a large variety of uses. A simple music select panel, zone control or preset recall are just a few of the possibilities. Changing the configuration is easy and installation couldn’t be simpler, thanks to the RS-485 network and flexible power options. The D4S makes user control for sound systems intuitive and flexible.