Direct Mode in Networked Operation

Just wanted some advice. I use an older Mac OS (10.9.5) which allows direct mode. I have recently added a network streamer (DigiOne - Raspberry Pi with a s/pdif audio board), so I use Audirvana in UPnP mode. I was wondering if direct mode is so important for sound when using Audirvana and the Mac as a set up to the streamer. If it is not important, then I might chose to upgrade my OS.

Since Direct Mode is, as I understand it, a driver, is it available when streaming, or would the driver from the streamer’s OS be used?

Turns out it’s the driver from the streamer’s OS. So if you’re using streaming exclusively, Direct Mode isn’t a consideration when deciding what MacOS to use.

Thanks, Jud.