A2B MADI interface

Convert from A2B to MADI and back with ease!

A2B MADI interface

Marenius A2B < >MADI is a 64-channel A2B to MADI and MADI to A2B bi-directional, full duplex interface in a durable aluminium chassis. The device can be used to synchronize audio signals with a third-party PC audio interface with MADI interface and A2B transmitted audio signals. Other third-party MADI interfaces can also be used when synchronized analog audio signals are required.

AUTOMATIC CLOCK SYNC

The interface has an advanced clock synchronization function and can be clocked from different master clocks. There is also an internal reserve clock if no external clock is provided. The MADI interface is optical and the device can automatically synchronize the internal clock with the incoming MADI stream. . Both A2B master and A2B slave are supported.

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64 CHANNELS A2B

The device has two A2B interfaces with 32 channels each. World clock in and out is supported on BNC. Each A2B interface has three different ports to choose from so that the user can select the port that suits the application.

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PROGRAMMED VIA SIGMASTUDIO

The configuration of Marenius A2B< > MADI is made via USB and Analog Devices software SigmaStudio. The configuration file can then be stored on an SD card for offline configuration of the A2B bus. . All settings made in the software are stored on the device so that the user can initiate a complete system at start-up.

SigmaStudio is a registered trademark of Analog Devices, Inc.

ALL THE CONNECTIONS YOU NEED

All input/output  ports are on the back of the Marenius A2B < > MADI.
From left to right they are:
External switch input, USB port for connection to a USB host. A2B programming port, A2B interface port.
BNC World Clock input, World Clock output, MADI ports (SC ports), External power supply via screw terminals or connectors (9–18 VDC ).

Download the A2B<->MADI manual

Contact Marenius via the form below to order the A2B< >MADI.
Alternatively, call us at +46 31-691610

A2B MADI specifications

  • Voltage range: 9-18VDC
  • MADI channels: 64
  • A2B channels: 64
  • SD card: SD, SDHC, SDXC
  • Latency, MADI to A2B bus master: 1 sample
  • Latency, A2B bus to MADI: 1 sample
  • Latency, A2B bus to A2B bus: 50uS
  • Size: 219x155x44 mm

A2B Bus analyzer

The A2B ↔ MADI Interface can act as a powerful A2B Bus Analyzer, giving engineers full visibility into complex automotive audio networks. Unlike single-bus analyzers, it supports dual A2B buses simultaneously—up to 32 channels each—enabling monitoring and troubleshooting across multi-zone or hybrid systems.

Key advantages include:

  • Real-time channel mapping, between A2B and MADI.

  • Clock domain synchronization, between A2B and MADI.

  • Deterministic latency, making it suitable for a mixed signal setup.

A2B Monitor

Beyond analysis, the interface is equally capable as an A2B Monitor. By bridging A2B into MADI, it enables direct integration with professional DAWs, mixing consoles, and measurement systems. Engineers and sound designers can listen to, record, and compare A2B audio streams in real time with other digital or analog sources.

Highlights of the monitor functionality include:

  • Sample-accurate comparison between A2B channels and external analog microphones.

  • Galvanically isolated MADI output, ensuring clean monitoring free from ground loop interference.

  • Front-panel LED indicators for quick, at-a-glance confidence monitoring of sync status, bus activity, and error states.