Questions & Answers

AVB Network with Studio Live and Motu Drop out

+2 votes
369 views
asked Nov 21, 2019 in StudioLive Series III by carstenprobst (250 points)
I have a AVB Network with SL Series III 24, SL Series III 32 and a Motu 8A Interface. It works fine, because one point. When i turn the Preamp Gain / Line Gain on SL 24 / SL 32, the AVB Network drops out for 15 secounds. After this Time AVB run normally. The Motu Support have no answer. Give it her help??

Thanks Carsi.

5 Answers

+1 vote
answered Nov 21, 2019 by wahlerstudios (104,410 points)
edited Nov 25, 2019 by wahlerstudios
I suppose you would get the same answer from PreSonus Support, so the answer is No. The Motu machine is not meant to work with PreSonus machines (and vice versa). Companies "design" their own AVB networks for their own products. You should look for a PreSonus interface.
+1 vote
answered Mar 19 by samuelaaron (170 points)
This isn't an answer - just a confirmation that this is also an issue with my setup. I have a PreSonus StudioLive 32SC connected to a MOTU AVB network (two MOTU UltraLite AVBs, one 16A and one 8A with a MOTU AVB switch).

Strange things definitely happen when I manipulate the gain on my StudioLive. It's not every time, but often. It doesn't matter which channel it's manipulating, just twiddling the gain will cause the MOTUs to drop out - not just in terms of audio, but also their web console disappears for a moment and sometimes they re-enable with a totally broken sample-rate requiring them (the MOTUs) to be disconnected and reconnected to their respective computers via USB to get the audio to work fine again.

I'd love to know if this gets addressed and I'm very happy to help debug/test things. :-)

I can also confirm that this is an issue with both the 2.1 and 2.2 firmware versions.

Other than this issue I've been sooo happy with the StudioLive 32SC!
+1 vote
answered Jun 24 by jasonhuffer (260 points)
Just to backup previous comments on this if anyone cares.  This has been an ongoing issue for me since Jan 2019.  Spent time with both Presonus and MOTU support about it.  I have a MOTU 828es and Presonus 16R.  There has been no solution of course because they don't support each others products and I believe any manufacturer is free to implement the AVB protocol as they see fit without concern for interoperability (unlike Dante).  The only workaround has been unplugging the CAT5e AVB cable when adjusting any input section parameter on the Presonus mixer.  Otherwise, yes the MOTU freaks out and partially reboots itself (you'll see the browser-based GUI go away and then come back, audio drops out) and you are down for about 30 seconds.  Sometimes this will cause a more lasting issue where the AVB stream stops working entirely even after the MOTU recovers.  The only remedy is rebooting them (I usually do both units when that happens).  I keep crossing my fingers when I install updates that the problem miraculously goes away, but so far no luck.
+1 vote
answered Oct 10 by carstenprobst (250 points)
I could now work around the problem. I sold Motu interfaces and bought an RME AVB interface in connection with a StudioLive 24R rack mixer. It works wonderfully. I use the rack mixer as an insert for my analog devices. Now I can use all the SL III preamps without any problems. I didn't want to wait any longer for an update from Motu or Presonuns.
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