Lectrosonics DM812 - Digital Matrix Processor

Lectrosonics DM812 - Digital Matrix Processor

Lectrosonics DM812 - Digital Matrix Processor

B&H # LEDM812 MFR # DM812

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Expected availability: 2-4 weeks

Product Highlights

  • 8 Input / 12 Output
  • Full DSP Crosspoint Matrix
  • USB and RS-232 Interfaces
  • AMX and CRESTRON Compatible

This item is noncancelable and nonreturnable.

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Lectrosonics DM812 overview

  • 1Description

The DM812 from Lectrosonics is a digital audio processor, that shares many of the DSP functions common in the marketplace, but with a very comprehensive routing system that allows any input to be patched to any single or multiple outputs simultaneously. Primary applications include sound reinforcement, boardroom conferencing, houses of worship, courtrooms and hotels. Any place which requires the use of multiple microphones and loudspeakers.

The unit provides 8 microphone/line inputs, 12 line outputs (4switchable to microphone output) with each input possessing a fixed sequence of multiple DSP filters, ADFE (automatic digital feedback eliminator), a compressor and a digital delay. During the routing stage (the matrix mixer), gain can be adjusted and then each output provides a digital delay, multiple DSP filters and a compressor/limiter. Modules have extensive editing parameters, and can be switched in or out of the signal path as required.

The DM812 features an algorithm to help with the performance of multiple microphone sources. Each microphone input can be assigned to a different mode that will govern how that microphone behaves in respect to other open sources. Attenuation of various sources is done in an intelligent and seamless manner, eliminating gating and its detrimental effects. Further, since the processing happens on the output, each input can function differently at each destination.

The unit can be programmed from the front-panel or via Windows software and a RS232 or USB equipped computer. Remote hardware control is also possible once the initial set-up is complete. Multiple units can be interfaced for greater system resources. Finally, all functions are available on all inputs and outputs without impacting DSP resources. Latency is minimal, even in multiple unit situations.

Digital matrix processor with 8 microphone/line inputs, 12 line outputs (4switchable to microphone output)
8 x 12 digital matrix mixing with gain adjustable from -69dB to +20dB
Microphone outputs can be used for connecting to a recording device
Proportional gain auto mixing algorithm with "AutoSkew," a process that eliminates artifacts such as comb filtering and abrupt gating that occur with conventional automatic mixing schemes
Auto mixing operates at the output of the matrix, with each input channel being able to participate differently in each output mix
Each output has its own NOM (Number of Open Microphones) mixing bus
6 filter stages plus compressor, ADFE (Automatic Digital Feedback Elimination) and delay on each input
9 filter stages plus compressor, limiter and delay on each output
128 macros available for storing up to 64 commands per macro
USB and RS-232 interfaces for setup and control
Digital I/O ports for "daisy chaining" and to connect other LecNet 2 devices
AMX and CRESTRON compatible
In the Box
Lectrosonics DM812 - Digital Matrix Processor
  • AC Power Cable
  • Software CD-ROM
  • One (1) Year Warranty
  • Table of Contents
    • 1Description

    Lectrosonics DM812 specs

    Frequency Response 20Hz to 20kHz, +/-1dB
    Dynamic Range Input: 102dB, unweighted (20Hz to 20kHz)
    Output: 105dB, unweighted (20Hz to 20kHz)
    Inputs 5-pin Phoenix connectors
    Outputs 5-pin Phoenix connectors
    Input Impedance 2.5kΩ
    Output Impedance 50Ω differential line level only
    Maximum Input Level +20dBu @ 0dB gain
    Maximum Output Level +20dBu
    Sample Rate 48kHz
    Phantom Power +15VDC
    Crosstalk Line Level -103 dB
    Mic Level -101 dB
    THD + N 0.02%, nominal input level
    Dimensions (WxDxH) 19 x 7.5 x 1.75" (483 x 191 x 45mm)
    Weight 3.75 lbs (1.7kg)
    Specialties Matrix mixing allows "mix-minus" routing to reduce acoustic feedback and eliminate echoes caused by speaker/microphone coupling in teleconferencing applications
    Packaging Info
    Package Weight 9.25 lb
    Box Dimensions (LxWxH) 24.0 x 14.5 x 6.1"

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