Multichannel Audio Digital Interface

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MultiChannel Audio Digital Interface, or MADI, defines a digital data multiplexing technology conforming to standards defined by AES10 1991 and AES10 2003. PESA’s Multi-Channel Audio Digital Interface (MADI) Adapter for DRS allows MADI compliant audio data streams to interface with a DRS router. Available as an input or output device for DRS, MADI technology allows routing of up to 64 AES compliant audio channels over a single coaxial cable or fiber optic cable. Each MADI adapter is a stand-alone module that can support up to 2 separate 64-channel input or output MADI data streams. For installations requiring multiple modules a rack-mount frame is available. Each frame is one rack-unit (RU) in height and houses up to four individual MADI modules.

DRS stand alone User Guide

Download the User Guide

Download the DRS Product Catalog


  • Distributed routing between signal frames
  • Simplified wiring schemes and cabling requirements
  • 128 I/O signals in a 1 RU frame
  • Choice of external signal connector types
  • Scalable from 64X64 up to 2048X2048
  • In-field expansion capability
  • Signal transport via Gig-E Ethernet
  • Full Dolby-E support
  • Allows simultaneous routing of AES and analog audio, embedded, MADI and time code signals
  • Allows mix of synchronous and asynchronous signals
  • Digital signal processing (DSP) on all audio input and output signals
    • Gain adjustment
    • Delay
    • L/R Summing
    • L/R Swapping
    • AES pair breakaway
  • Internal signal generator can insert a test signal into any audio output channel you select from the following
    available test signals
  • Audio silence
  • Steady and sweep test tones
  • White noise
  • Pink noise


MADI Audio
Connector Types BNC
Input Level 200 mV- 2.0 Vp-p
Input Impedance 75 Ohm
Output Level 1 Vp-p
Output Impedance 75 Ohm
MADI Port Mode Each MADI port may support 28, 32, 56, or 64 synchronous audio streams, GUI selectable
Digital Signal Processing
Gain Adjustment Independent +/- 6 dB adjustment in 0.1 dB increments for each input and output, GUI selectable
Audio Delay Independent delay elements for inputs and outputs. Unrestricted mode provides 0.341 milliseconds (>10 NTSC frames) for each input and output. Restricted mode provides up to 1.365 seconds (>40 NTSC frames) of delay per input and output for a limited number of channels. All delay parameters are GUI selectable
Phase/Inversion Independent Control for each input and output, GUI selectable
Stereo Remedies Independent Control for each pair of inputs and outputs. The L and R channels of each pair may
be individually set to L, R, L+R or L-R. All stereo remedies are GUI selectable.
AC Input Connectors IEC 320C6 socket power (accepts IEC 320 C5 line cord)
Requirement 60VA Max per frame
Input Voltage 90-260 VAC, 47-63 Hz
Operational Temperature 0-40 degrees C
Operational Humidity 90% non-condensing
Mechanical Dimensions 1RU 1.75″ H x 19.00″ W x 14.75″ D
Weight 12 lbs.
DRS-FRM-IMADI-BNC MADI Input Adapter Module
DRS-FRM-OMADI-BNC MADI Output Adapter Module
DRS-1RU-TRAY Rack mount kit for up to 4 MADI modules, w/ power supply

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