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The Marani DPA880 8x8 Pro Digital Matrix and Feedback Eliminator is a 1 unit rack mountable signal processing matrix designed for conference systems. The device allows you to route any combination of 8 inputs into any combination of 8 outputs. Each input can be either a line level or microphone signal with optional +48V phantom power. The unit includes a variety of signal processing tools such as an RMS compressor, a peak limiter, a 5-band graphic equalizer, high and low shelving filters, high and low band pass filters, a feedback destroyer, and a digital delay. You can control the unit via USB, RS485, and wall remote controls. To expand your signal routing options, up to 32 Matrix Units can be connected together.
For dynamic processing, the unit includes an RMS compressor on each channel output
To prevent clipping, the unit includes a peak limiter on each channel output
Hi/Low Shelf Filtering
The device includes high and low shelf filtering of each channel ranging from -15 dB up to +15 dB in gain
High Pass and Low Pass Filters
The device includes high and low pass filters up to 24 dB/octave
To manage feedback, the unit utilizes a pitch shifting feedback destroyer algorithm that is especially useful for vocal performances
The device includes a digital delay so that you can time align different speakers placed within a room.
So you can save your preferred signal processing and matrix routing parameters, the unit includes 6 programmable preset buttons
Displays and Indicator Lights
The unit's presets are displayed on a 2 x 24 character LCD and each of the 8 inputs is correlated to a row of 5 LEDS that indicate line, microphone, feedback, signal/clip, or limiter settings
Master Input Gain and Output Level
A master input gain and master output level allows you to control the level of all the inputs and outputs at once.
The device can be controlled via USB connection with the available PC software remote control. It can also be controlled via RS485 connection with the PC software remote control configured for operation through the net or via a wall panel remote control. Both the wall control and the USB control can operate simultaneously.
In the Box
Marani DPA880 8x8 Pro Digital Matrix and Feedback Eliminator
VAC Power Cord
Limited 1-Year Warranty
Table of Contents
8 x balanced Euroblock connectors
8 x balanced Euroblock connectors
Maximum Input Level
Line: +18 dBu Mic: -11 dBu
Maximum Output Level
Digital Signal Processing (DSP)
Dream SAM3716, 24-bit (data) x 96-bit (coefficient), sw enhanced precision
A/D: 4 x AK5385B at 24-bit resolution D/A: 1 x AK4358 at 24-bit resolution
380.998 ms by 21 μs increment/decrements steps on each output
3 filters per input, assignable as either bell or shelving
20 to 20,000 Hz (± 1 dB)
Symmetrical bell or high/low shelving up to second order
Filter: -15 dBu to +15 dBu by 0.5 dBu steps
Selectable with 1/24th octave steps from 20 Hz to 20 kHz
Q/BW from 0.4/3.59 up to 10/0.0312 by 0.1 resolution steps
From 1st order (Butterworth -6 dB/Oct) up to 4th order (Butterworth, Linkwitz or Bessel -24 dB/Oct)
From 1st order (Butterworth -6 dB/Oct) up to 4th Order (Butterworth, Linkwitz or Bessel -24 dB/Oct)
THD & Noise
Threshold: From 18 dBu up to -12 dBu
Attack Time: From 5 ms up to 200 ms (1 ms resolution up to 20 ms, then 10 ms resolution up to 100 ms and 20 ms resolution up to 200 ms)
Release Time: From 0.1 seconds up to 3 seconds (0.1 second resolution)
Ratio: 1:1 (Bypass) up to 32:1 (Limiting), with ratio slope computed on log table with 0.1 dB steps precision
Threshold: from 18 dbU to -12 dBu
Attack time: From 5 ms up to 200 ms (1 ms resolution up to 20 ms, then 10 ms resolution up to 100 ms and 20 ms resolution up to 200 ms)
Release time: From 0.1 seconds up to 3 seconds (0.1 second resolution)
1 LED for microphone phantom power supply active 5 LEDs for outputs activity: Line input selected Mic input selected
Feedback (active for microphone)
Signal present (blue)
Signal clipping (red)
RMS compressor or peak limiter activity