



RME AoX-MADI-EXT-BNC
MRP - Rs. 24,851
RME AoX-MADI-EXT-BNC expansion board for HDSPe AoX: 2 x MADI coaxial I/O on BNC plus word clock, 128 channels at 48 kHz. Available in India from Shivansh Electronics, Kolkata, West Bengal, India.
VISUAL GUIDE — See Every Photo, Spec & Setup Step (PDF)
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AoX-MADI-EXT-BNC
| Type | HDSPe AoX expansion board, coaxial version |
| MADI | 2 x MADI I/O on BNC |
| Channels | 128 / 64 / 32 at 48 / 96 / 192 kHz |
| Word clock | 1 x BNC, output (input in slot A) |
| Works with | HDSPe AoX‑M, HDSPe AoX‑D |
| RME part number | AOXMEB |
Product overview
The RME AoX-MADI-EXT-BNC is the coaxial expansion board for the HDSPe AoX cards: two MADI inputs and outputs on BNC plus a word clock BNC, with 128 / 64 / 32 channels at 48 / 96 / 192 kHz.
It connects to one of the two internal expansion ports of an HDSPe AoX-M or AoX-D. With two boards the card offers four MADI inputs and four MADI outputs in addition to its network audio channels. The word clock BNC works as an output by default and can be switched to input on the board in slot A.
Compatible with
- RME HDSPe AoX-M
- RME HDSPe AoX-D
- Up to two expansion boards per card (expansion ports A and B)
In the box
- RME AoX-MADI-EXT-BNC expansion board
RME AoX-MADI-EXT-BNC: frequently asked questions
How many MADI channels does one board add?
Two MADI I/Os: 128 channels at 48 kHz, 64 at 96 kHz and 32 at 192 kHz.
Can the word clock BNC be an input?
Yes, on the board in expansion slot A; it acts as output by default.
Where can I buy the RME AoX-MADI-EXT-BNC in India?
The RME AoX-MADI-EXT-BNC is available from Shivansh Electronics, Kolkata, West Bengal, India, with delivery across India.
Workflow 1: Adding coaxial MADI to an HDSPe AoX
Connect MADI devices with BNC cables to a network audio card.
Connections
| Connect | To |
|---|---|
| AoX‑MADI‑EXT‑BNC | Expansion port A or B of the HDSPe AoX |
| MADI devices | MADI 1 and MADI 2 BNC I/O |
Setup
- Fit the board and connect it to the expansion port.
- Set the MADI channel count in the driver dialog.
- Pre-select the MADI inputs in the input matrix.
- Mirror playback channels to MADI in the output matrix.
Workflow 2: Word clock for the AoX system
Clock the card from house word clock.
Connections
| Connect | To |
|---|---|
| House word clock | Word clock BNC of the board in slot A |
Setup
- Fit the board in slot A.
- Tick 'input' for the word clock A connector in the Settings dialog.
- Select it as clock source.
- Check lock in the Input Status display.








