The DRM 4000 is a rack mixer and/or audio signal router offering 8 audio inputs and 2 audio outputs. The inputs are divided into 4 MIC/Line and 4 AUX channels. Each input channel can be freely assigned to either one or two output channels offering mono 2-channel operation as well as stereo operation modes. The DRM 4000 can be used as a pre-mixer for the DPM 4000, expanding the amount of available input channels. DRM 4000 and DPM 4000 can be linked via an RS 485 remote interface. Priority functions, preset switching and routing are easy to configure and operate. By means of the PROMATRIX® Designer software control of all routing possibilities, ducking control, preset switching via macros, output level control, preset configuration and saving is possible. The DRM 4000 mixer & router can also be used as stand-alone unit for simple sound reinforcement tasks e.g. in a multimedia setup as well as for straightforward paging installations. Typical applications include the use as a mixer for sound reinforcement systems in conference rooms, multi-purpose halls, event halls, clubs, catering, churches, etc. The DRM 4000 shall offer four AUX input channels (each with two RCA-type connectors) and four MIC/Line input channels (XLR connectors), volume and tone control (Lo/Hi) in all input channels, PEAK/SIGNAL LEDs (green/red) for monitoring the input level in all inputs channels and direct outputs for all MIC/Line and AUX channels. Furthermore the unit shall have priority control (ducking function) in the inputs MIC/Line 1 and 2; and be controllable via external contacts, signal level with adjustable threshold (on the front) or via remote control, indicated via LEDs on the front panel. There shall be VCAs in both output channels providing two VCA control inputs A/B for remotely controlling the volume setting via external potentiometer, and also controllable via serial interface (PC, DPM 4000, media control) or via control contacts. In addition there shall be remote control functionality via external contacts: 8 independently configurable control inputs for ducking MIC/Line 1 and 2, preset switching, routing, volume switching, MUTE. The device has CE marking as well as UL and CSA recognition and is EN 60849 / VDE 0828 conformable in combination with the PROMATRIX® system.
