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Mac Mini doesn't "see" Peachtree Grand

I have a Mac Mini, circa 2010, running the latest OS. When I plug the USB cable in between it and the Peachtree Grand Pre X-1, the PT doesn't appear as a device when looking at the audio output options on the Mac. I tried the same cable plugged into my Macbook Pro and the PT shows up there just fine.

Any ideas why the Mini wouldn't recognize it? I tried multiple reboots and power recycles with no luck.
jkscherk
doggiehowser
672 posts
 
did you manage to get it to work?
jkscherk OP
44 posts
 
So going back and forth with the Peachtree Audio guys (very helpful BTW) they determined there was a current leak across the USB ports between the Mini and the Grand. If I used my Apple Cinema monitor, which has a grounded plug as well as needing one of the USB ports to function, the problem went away. It also was able to be resolved by running a 3.5mm to RCA cable between the Mini and the Grand. So it comes down to a grounding issue. They offered to do a simple mod for free to resolve it permanently. Or I could just keep the 3.5mm to RCA in place....but that ties up an input on the Grand.

Haven't decided what to do yet. But good to find out there are a couple of possible solutions.
doggiehowser
672 posts
 
You might want to try the USB-X. I think it allows you to change the way the Earth is connected on the USB power lines. You might want to use the same distributor as the preamp
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