Lightpipe to AES/EBU?
Old 14th January 2008
  #1
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Lightpipe to AES/EBU?

Can anybody suggest a way to connect a computer's lightpipe out (Mac G5 Quad) to a Dangerous D-Box AES/EBU in? I don't want to get too fancy; just simple and functional. And this is not for mixing or tracking purposes, just for listening to non-ProTools audio sources while I'm in the middle of a ProTools mix...

Last edited by DanGo; 14th January 2008 at 09:49 PM.. Reason: clarification
Old 14th January 2008
  #2
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I don't think there is a cheap way to do it as you couldn't just use a cable since it's lightpipe to aes. If your mac has a spdif out you can get a cable made to convert to aes. Other options include the RME ADI4 DD, albeit more expensive.
Old 14th January 2008
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Thanks. The Mac doesn't have spdif, unfortunately.

But I have seen the RME and wondered if that would make sense.

If I go down that route, then I'm completing the system as I envision it: Digi 002 Rack to AD/DA converter/clock to D-Box and back again.

So, as often happens at GearSlutz, I "have" to buy more gear! hee hee

But it brings up more questions for me. Would the RME ADI4 DD be appropriate for bringing 8 outs from ProTools into the D-Box?

And how does the quality of RME's stuff compare to Apogee's?
Old 15th January 2008
  #4
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THe Dbox has 8 channels so if you wanted to sum 8 channels that would take up a whole ADi4 (you need dsub for this I believe) or ADI8 DD and wouldn't leave you room to go with a discrete master out to the Dbox's AES DA converter.. You could sacrifice one summing channel. I use RME stuff and I am happy with the quality for the money. THe ADI DD boxes are all digital so there are no ADA converters so quality isn't really an issue either. I have had no problems with mine. I got my ADI's on ebay for significantly cheaper.

If you can find one of those old Alesis adat to aes format converters that would be a lot cheaper than the ADI's.
Old 15th January 2008
  #5
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I just bought my RME ADI 4 -DD a couple of weeks ago on ebay with an AES snake for about $500 to use between my Hedd 192 and my HD24XR ....It works great.....Alesis used to make the AI-4 AES/EBU to lightpipe interface but that is now discontinued.....so far my RME conversion box is doing its job albeit a bit pricey just for that conversion purpose.




Ron Florentine
Soundswest Studio
Old 15th January 2008
  #6
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Old 15th January 2008
  #7
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Old 15th January 2008
  #8
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Have you browsed the classifieds?

Quote:
Originally Posted by DanGo View Post
Can anybody suggest a way to connect a computer's lightpipe out (Mac G5 Quad) to a Dangerous D-Box AES/EBU in? I don't want to get too fancy; just simple and functional. And this is not for mixing or tracking purposes, just for listening to non-ProTools audio sources while I'm in the middle of a ProTools mix...
The M-audio CO3 box will do the trick, methinks:
https://www.gearslutz.com/board/gears...lean-down.html

there, that's my good deed for today.
Old 15th January 2008
  #10
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There you go!
Old 15th January 2008
  #11
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If you're planning on using the CO2, be sure the lightpipe signal you're trying to convert is in optical S/PDIF format. If it's ADAT lightpipe, you'll need something like the ADI-4 DD or the ADI-192 DD. Note also that the ADI-4 DD had only 4 AES outs via D-sub and one AES XLR out. The ADI-192 has 4 AES XLR outs covering 8 channels.
Old 15th January 2008
  #12
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Thanks, Gang! I think the M-Audio will do the trick for bringing in audio sources I do not want to sum. Yes, the Mac G5 Quad has spdif, but it is optical.

I emailed with Dangerous Music and apparently, for summing (I think...perhaps I misunderstood), I can use an RCA/SPDIF to AES cable out of my Digi Rack 002 and into the D-Box.

I'm still a little fuzzy on that one. Currently, I'm using Mogami cabling (d-sub to 8 1/4" trs plugs) for summing. It already makes a difference. Of course, being a gear slut means trying all the options til you find the best one for you and that means buying more stuff!! ;-)
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