Topic: ADI-2 PRO not working in USB mode when also connected via ADAT.
Hi,
we have a problem in our studio where we just got our ADI-2 PRO. We have a Presonus Quantum 4848 connected to the computer via thunderbolt and use that as the main audio interface in Studio One. From the Quantum we send adat 1-2, via optical out, to the ADI-2 pro's optical digital in.
If we start up Studio One and choose the Quantum adat 1-2 as main out, everything works fine. We get audio sent to the ADI-2 and it's then converted and sent to our monitor system and speakers (sounds great by the way!).
However, we also have the ADI-2 Pro hooked up via USB to the computer (Mac Pro 2013, High Sierra), so that we can use the ADI-2 pro for certain 1-2 channel recordings and as system audio out. The problem comes from trying to choose audio output in MacOS.
When we select the ADI-2 Pro USB as main out, we cant seem to get any sound out from spotify/Youtube etc. as long as the Quantum is turned on and hooked up to the ADI-2 pro. We have tried to have the ADI-2 in all different modes (USB, AUTO, DAC, etc.) but nothing seems to work. As soon as we turn on the quantum we cant get any signal when using the ADI-2 USB as main out in Mac OS.
If we could tell MacOS to use Quantum4848 ADAT 1-2 as main out, this wouldn't really be a problem, but I cant find a way to do that. I can only choose "Quantum4848 - Thunderbolt" and it then defaults to analog 1-2, which we dont want. (this is not a problem in windows, since it's easy to choose any output from any interface as main out).
We therefore need the ADI-2 PRO to work in usb-mode, even if it's connected via ADAT to the quantum4848, but that doesn't seem to be the case.
We're probably missing something either in MacOS settings or in the setup of the ADI-2, so any pointers in the right direction are appreciated!
Update: I tried disconnecting the optical cable connecting the ADI-2 and the quantum and it then seems to work to switch between the quantum and the ADI-2 in MacOS sound setttings - getting signal to my speakers from both. But as soon as connect the ADI-2, via adat, to the quantum the ADI-2 no longer works in USB mode..
Kind Regards,
Jay