Lectrosonics DM812
Digital Automatic Matrix Processor, 8 In, 12 Out

DM812

PThe DM812 is a powerful digital audio processing, mixing and routing system. The primary applications are sound reinforcement and conferencing in boardrooms, courtrooms, worship centers, distance learning systems, hotels and other applications with multiple microphones and loudspeakers. The design represents a milestone in DSP technology in its basic architecture and in its processing speed and efficiency./PPThe basic architecture consists of 8 mic/line inputs and 12 outputs with a full DSP-based crosspoint matrix that allows every input to be routed to any or all outputs. Following the A-D conversion at each input, the signal passes through multiple DSP filters, ADFE (automatic digital feedback eliminator), a compressor and a digital delay. In the matrix, gain is adjustable from -69 to +20 dB in 1 dB steps at each crosspoint. Each of the 12 outputs provides a digital delay, multiple DSP filters and a compressor/limiter./PPSTRONGFeatures/STRONG/PUL LI8 mic/line inputs, 12 line outputs (4 outputs are mic/line switchable) LI8 x 12 digital matrix mixing; gain is adjustable from -69 to +20 dB LIProportional gain auto mixing algorithm with AutoSkew™ - US Patent 5,414,776 and 5,402,500 LIAuto mixing operates at the output of the matrix - each input channel can participate differently in each output mix LIEach output has its own NOM mixing bus LI6 filter stages plus compressor, ADFE and delay on each input LI9 filter stages plus compressor, limiter and delay on each output LI128 macros available for storing up to 64 commands per macro LIUSB and RS-232 interfaces for setup and control LIDigital I/O ports for "daisy chaining" and to connect other LecNet 2 devices LIAMX© and CRESTRON™ compatible LISimultaneous LecNet2 and Third-Party control/LI/ULPSTRONGAudio Inputs/STRONG/PUL LIGain: -10 dB to +60 dB, programmable in 1 dB steps LIInput impedance: 2.5 k Ohm LIPhantom voltage: 15 V, programmable LIConnector: 5-pin Phoenix/LI/ULPSTRONGAudio Outputs/STRONG - Floating balanced, either side can be grounded/PUL LINominal level: 0 dBu all outputs, -40 dBu selectable on outputs 9 through 12 LIOutput impedance: Line Only: 50 Ohms differential line level only outputs; Mic/Line: 600 Ohm differential programmable outputs at line level, 130 Ohm differential programmable outputs at microphone level/LI/ULPSTRONGAudio Performance/STRONG/PUL LIIMD + noise: 0.1% max. 0.02% nominal input level LITHD + noise: 0.1% (worst case) 0.02% nominal input level LIEIN: -126 dBu/LI/ULPSTRONGConnectors/STRONG/PUL LIAudio I/O: 5-pin Phoenix LIExpansion: RJ45 LILogic I/O: DB25 LISerial: Standard USB and mini TRS/LI/ULPSTRONGProprietary Network/STRONG/PUL LIPhysical level: LVDS (Low Voltage DIfferential Signal) high speed LIConnector: Four RJ-45 LICable quality: Shielded CAT-5 LITransmission speed: 50 Mbits/s/LI/ULPSTRONGProgrammable Control Inputs/STRONG/PUL LINumber of inputs: 22 LIAnalog voltage range: 0-5V LILogic input: TTL, LVTTL, CMOS, LVCMOS/LI/ULPSTRONGProgrammable Control Outputs/STRONG/PUL LINumber of logic outputs: 16 LILogic control: active low LIMax sink current: 100 mA LIMax supply voltage: 40 V LISupply voltage for control I/O: 5 V LIMax current: 750 mA/LI/ULPSTRONGSpecifications/STRONG/PUL LIInput Dynamic Range: 96 dB at -50 dBu input level 102 dB at all other levels (unweighted 20 - 20 kHz) LIOutput Dynamic Range: 105 dB (unweighted 20 - 20 kHz) LIPower requirements: 100-240 VAC, 47-63 Hz LIPower consumption: 30 Watts/LI/UL

Our Part #  DM812