2 Apogee AD-8000 connection question

phaqu · 30th July 2007, 02:37 AM

I am trying to hook up 2 AD-8000's to a mix core card using a y cable. Are there any settings as to specify a master and slave? The reason Im asking is that when the 2 converters are hooked up to the y, there appears to be noise on the 9-16 channels, and its not the cables going from the Digi 8 plus to the core. Could the y cable be bad? Thanks

JYoder · 30th July 2007, 04:28 AM

I think you need to lock the two together...

Word clock out of the first and into the second. Then tell it to slave to word clock in the clocking section on the upper left.

I'm assuming that everything is in "destination mode" on the right side?

phaqu · 30th July 2007, 04:54 AM

Everything is set like it was when one or the other converter was used ( and worked) independently.
I dont see anything that would let me specify which one would be master or slave (unless it does it automatically).
I think the signal was getting there, as I could see the meters moving on channels 9-10 ( 1-8 from the first converter to Pro Tools were fine), but, there was noise on all the channels 9-16 when record was engaged, even when there was nothing attached to the inputs of the converters. We switched converters from a and b positions and 9-16 still had noise.
Pro Tools recognized the second converter, and configured the ins and outs with no problems,or,...at least I think so.

JYoder · 30th July 2007, 05:03 AM

Protools won't control everything for you.
It might show that it's getting signal, but that doesn't mean the two are clocked properly.

BNC word clock cable out from the 1-8 unit into the word clock in of the second unit.

On the second unit, set the clock to Word Clock on the upper left hand side.

phaqu · 30th July 2007, 05:20 AM

Ok, Ill try it tomorrow (if I can find a BNC cable laying around).
My spare cable box looks like spaghetti right now.

phaqu · 30th July 2007, 05:24 AM

Out of curiosity, would the same process be needed if it, the second converter, was to be connected to a farm card instead of a Y-cable?

JYoder · 30th July 2007, 05:33 AM

yes.
It's a separate unit trying to run an independent clock while looking at a digital signal.

go here...

http://www.apogeedigital.com/pdf/dig...usersguide.pdf

the examples setups are with an external clock... what I described is the quickest and easiest..

phaqu · 30th July 2007, 06:18 AM

So,...do I set converter A to crystal, run BNC out of it (the converter it self, not the DIGI 8 AMBus card word clock ), to word clock in on the second converter B, which will be set to word clock, making it slave to converter A?

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30th July 2007, 02:37 AM	#1
phaqu Gear addict Join Date: Apr 2006 Location: Atl GA Posts: 304	2 Apogee AD-8000 connection question I am trying to hook up 2 AD-8000's to a mix core card using a y cable. Are there any settings as to specify a master and slave? The reason Im asking is that when the 2 converters are hooked up to the y, there appears to be noise on the 9-16 channels, and its not the cables going from the Digi 8 plus to the core. Could the y cable be bad? Thanks

30th July 2007, 04:28 AM	#2
JYoder Gear maniac Join Date: Oct 2002 Location: Nashville, TN Posts: 248	I think you need to lock the two together... Word clock out of the first and into the second. Then tell it to slave to word clock in the clocking section on the upper left. I'm assuming that everything is in "destination mode" on the right side? __________________ Jerry Nashville, TN

30th July 2007, 05:03 AM	#4
JYoder Gear maniac Join Date: Oct 2002 Location: Nashville, TN Posts: 248	Protools won't control everything for you. It might show that it's getting signal, but that doesn't mean the two are clocked properly. BNC word clock cable out from the 1-8 unit into the word clock in of the second unit. On the second unit, set the clock to Word Clock on the upper left hand side. __________________ Jerry Nashville, TN

30th July 2007, 05:33 AM	#7
JYoder Gear maniac Join Date: Oct 2002 Location: Nashville, TN Posts: 248	yes. It's a separate unit trying to run an independent clock while looking at a digital signal. go here... http://www.apogeedigital.com/pdf/dig...usersguide.pdf the examples setups are with an external clock... what I described is the quickest and easiest.. __________________ Jerry Nashville, TN

30th July 2007, 04:54 AM	#3
phaqu Gear addict Join Date: Apr 2006 Location: Atl GA Posts: 304	Everything is set like it was when one or the other converter was used ( and worked) independently. I dont see anything that would let me specify which one would be master or slave (unless it does it automatically). I think the signal was getting there, as I could see the meters moving on channels 9-10 ( 1-8 from the first converter to Pro Tools were fine), but, there was noise on all the channels 9-16 when record was engaged, even when there was nothing attached to the inputs of the converters. We switched converters from a and b positions and 9-16 still had noise. Pro Tools recognized the second converter, and configured the ins and outs with no problems,or,...at least I think so.

30th July 2007, 05:20 AM	#5
phaqu Gear addict Join Date: Apr 2006 Location: Atl GA Posts: 304	Ok, Ill try it tomorrow (if I can find a BNC cable laying around). My spare cable box looks like spaghetti right now.

30th July 2007, 05:24 AM	#6
phaqu Gear addict Join Date: Apr 2006 Location: Atl GA Posts: 304	Out of curiosity, would the same process be needed if it, the second converter, was to be connected to a farm card instead of a Y-cable?

30th July 2007, 06:18 AM	#8
phaqu Gear addict Join Date: Apr 2006 Location: Atl GA Posts: 304	So,...do I set converter A to crystal, run BNC out of it (the converter it self, not the DIGI 8 AMBus card word clock ), to word clock in on the second converter B, which will be set to word clock, making it slave to converter A?

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