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Author Topic: 256 channel out system - recommendations ?  (Read 2233 times)

Augustine Leudar

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256 channel out system - recommendations ?
« on: December 06, 2012, 02:25:52 pm »

Hi,
I am looking for economical ways of building a 256 channel out system which will be connected to 256 speakers for a wavefield synthesis system. I do not need a desk - or even inputs.
You can get an RME HDSPe MADI FX for around 1000 which will do 192 channel out.
Question 1
anyone know how to do a 256 channel system ? - can you expand the rme with an extra 64 channels somehow ? They would all need to be controlled by the same clock so they were perfectly synchronised - perfect timing is even more important than usual in WFS systems.
Question 2 -
Does windows still only support 254 channels ?
Question 3 :
Can anyone think of a cheaper way of doing this:

RME ADI 648 MADI Breakout MADI to ADAT 4 * 1,749.00
RME HDSPe MADI FX 1099
32* behringer ADA8000 ADAT converters : 4800

Total 12,966
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Hollis

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Re: 256 channel out system - recommendations ?
« Reply #1 on: January 18, 2013, 03:16:23 pm »

D.O.TEC ANDIAMO is a 32 ch 1U analog/MADI converter. Not sure what the cost is but perhaps that would be cheaper, and even if it's the same price it would be simpler connection.

The SSL MadiXtreme can do 128 on a single PCIe slot, and you can put as many as you want in a computer. So that's half the space as the RME.

I don't know how many channels Windows OS drivers support, but ASIO may be your better bet. Clocking would naturally come from your computer, or WC the devices in a chain.
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Mo Facta

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Re: 256 channel out system - recommendations ?
« Reply #2 on: January 21, 2013, 02:16:33 pm »

Maybe you should consider some sort of Audio over Network protocol, such as Dante.  I know that the new Focusrite RedNet system uses Dante, is scalable and can handle up to 128 bi-directional channels on one PCI-e card:

http://global.focusrite.com/rednet

I don't know, however, if you can use more than one PCI-e card.

Cheers :)



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