Audirvana appears to treat DLNA as a single output device.
I have two DLNA devices with very different characteristics - specifically one only supports sampling rates up to 96 kHz while the other supports up to 384 kHz. If I configure Audirvana to use one then switch to the other, these aren’t changed resulting in either reduced performance or silence.
It’s really not acceptable to have to tweak low level parameters each time I swap between the endpoints so I’m reluctantly having to stop using Audirvana.