Expand audio system possibilities with REAC and MADI

  • REAC

Expand audio system possibilities with REAC and MADI

Up to 40x40 channels of digital audio transfer between REAC and MADI devices

  • - Bi-directional format conversion between REAC and MADI
  • - BNC and Optical MADI ports
  • - REAC SPLIT OUT for connecting to additional devices
Relevant product
Pro Audio

Bridging REAC with MADI

S-MADI is bi-directional format converter between REAC and MADI. Up to 40x40 channels of digital audio transmission is possible between MADI equipment and REAC products such as the Digital Snake series, V-Mixers, and M-48 Live Personal Mixers. Both BNC and Optical I/O ports are included along with support for 56/64Ch mode. Clock source can be selected from REAC, MADI or Word Clock.


The REAC SPLIT OUT port provides audio signal from REAC or MADI enabling a separate monitoring or recording audio signal from the main stream. The SPLIT OUT supports REAC Embedded Power which supplies both the audio stream as well as power to a M-48 Live Personal Mixer or S-0808 Digital Snake.

Remote Control

A connected Digital Snake can be controlled using the S-4000R Remote Controller. Using the S-4000RCS dedicated software also enables control of Digital Snake and M-48 Personal Mixing setup and monitoring parameters.

Digital Snake

This is an example of a live stage system using a Digital Snake with a MADI equipped digital console. Phantom power and preamp gain can be controlled from the S-4000R Remote Controller connected to the S-MADI.

Personal Mixing

Connect several M-48 Live Personal Mixers to a MADI equipped digital console. An additional M-48 can be connected to the SPLIT OUT port on the S-MADI that also supplies power - all over one Cat5e cable.

Monitor/Broadcast Position with Digital Snake

Here is an example of using a V-Mixer as a monitor or broadcast console along with a digital snake. The V-Mixer connects to the SPLIT OUT on the S-MADI bridge enabling a 32 channel split from the S-4000S separate from the FOH mix.


Sampling Frequency

48 kHz/44.1 kHz

MADI Channel Mode

64 Ch/56 Ch


Front Panel:
REMOTE (D-sub 9-pin type, RS-232C)
Rear Panel:
REAC MAIN (RJ-45 EtherCon type), REAC SPLIT OUT(REAC EMBEDDED POWER, RJ-45 EtherCon type), WORD CLOCK IN (BNC type), WORD CLOCK OUT (BNC type), Coaxial MADI IN (BNC type), Coaxial MADI OUT (BNC type), Optical MADI IN/OUT (SC duplex type)

Power Supply

AC 115 V, AC 117 V, AC 220 V, AC 230 V, AC 240 V (50/60 Hz)

Current Drew

0.7 A (REAC Embedded Power: Maximum)

Size and Weight

Width (W)
482 mm19 inches
Depth (D)
303 mm11-15/16 inches
Height (H)
44 mm1-3/4 inches
3.5 kg7 lbs. 12 oz.

All specifications and appearances are subject to change.


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