DM84 Audio Processor


Digital Matrix Processor

(Not Available in Europe)

DM84 Description|active

  • 8-in/4-out digital matrix architecture
  • Stackable with enlarged matrix up to 24-in/12-out
  • Front panel level controls with activity LEDs
  • 6 filters plus compressor on each input
  • 9 filters plus compressor/limiter on each output
  • USB and RS-232 interfaces for setup and control
  • Fully balanced audio signal flow through entire system
  • Digital I/O ports for connection to other LecNet 2 devices
  • Proportional gain auto mixing algorithm with AutoSkew™ - US Patent 5,414,776
  • Simultaneous LecNet2 and Third-Party control

The DM84 is an 8-in, 4-out digital matrix processor with the capability to route any combination of inputs to any combination of outputs with extremely low throughput latency. Automatic microphone mixing is accomplished via a patented Adaptive Proportional Gain algorithm. Sophisticated filtering is offered on each input and output. A compressor is available on each input, a compressor and limiter on each output. In addition, each input and output can be configured with a delay setting of up to 100 ms for inputs, 250 ms for outputs. The DM84 runs on the latest-generation DSP architecture and can be integrated as part of a larger system by connecting other DM units (like the DMTH4) via the Digital Audio Network Interface (DANI) bus.

The DM84 has enhanced expandability - up to a limit of three, combining multiple DM84 units expands not only the number of the mic inputs, but also the number of distinct outputs/mix busses in the system. Stacking 2 units creates a 16x8 mixing matrix; stacking 3 units creates a 24x12 mixing matrix. While individual outputs/mix buses are normally treated as independent NOM buses for microphone mixing, the DM84's "phantom" mix mode capability allows multiple mix busses to be combined into a single NOM bus for mix-minus sound reinforcement applications.

The DM84 offers eight mic/line inputs with four mic/line outputs; switchable phantom power to handle condenser microphones; programmable front-panel control knobs for easy input and output gain adjustment; front panel indicators for input and output channel activity; and auto mic mixing with Proportional Gain and AutoSkew. The unit is AMX® and CRESTRON® compatible with USB and RS-232 interfaces for setup and control. Also, a programmable I/O interface allows control using contact closures or voltage levels as well as system status monitoring.

Included Accessories

  • 1 - Power Cord (Part #21499)
  • 1 - Interconnect Cable - Black (Part #21529-1)
  • 1 - Interconnect Cable - Red (Part #21710-1)
  • 1 - 25-Pin Female Connectors (Part #21558)
  • 6 - 5-Position Plug (Part #21580)
  • 1 - USB Cable (Part #21713)
  • 1 - CAT5 Cable (Part #21716)
  • 1 - Adjustment Tool (Part #35679)
  • 1 - LecNet2 Software CD 
  • 1 - Manual

Optional Accessories & Replacement Parts
Data Sheet