Yes, I agree with Guillaume - AVB is a good option. miniDSP sell an 8 channel box AVB box, the N-DAC8, for $299.

With three of these you have 24 channels, and they all run off the same network clock. You would also need a small (4/5 port) switch.

A more expensive, but also easily configurable option is their SPK-4P Power over Ethernet option ($395). For 22 channels, you would then have 22 speakers connected to a 24 port switch. Power, audio, and control then all travel over one cable, which makes for easy configuration. Again, all speakers are synced to the same network master.

Richard.


On 2017-06-28 07:39 PM, Guillaume Le Nost wrote:
Aside from dante, AVB is another option for multichannel audio over ethernet.
It is now available as standard (and for free) in any Mac running a recent os, 
and several options for avb enabled amplifiers are available: biamp, crown, 
l-acoustics to list a few.
If converters are required, the Motu AVB series can help, and is relatively 
inexpensive.

Guillaume

On 28 Jun 2017, at 18:00, Jörn Nettingsmeier <netti...@stackingdwarves.net> 
wrote:

On 06/27/2017 07:52 PM, Augustine Leudar wrote:
see my post before last for what went wrong. How much are the Joecos ?
https://www.thomann.de/gb/joeco_bbr64_dante_blackbox_recorder.htm

However, if you go the Dante route, you might as well use an old Minimac with a 
virtual soundcard (if 32 ch out is enough) and an appropriate Dante converter. 
Should be cheaper, if you have the Mac lying around, and no less robust if the 
hardware is otherwise ok.


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