Spdif out to XLR

[devianet]

I think that it was in a block diagram I remember seeing at some point.

But to me the following chain of thinking indicates it really strongly:

Theory: All (frequency) filtering in the Expert is done in the digital domain, i.e. as DSP upstream of any DAC.

Fact: It's possible for the main outputs to have different filtering from the pre-outs. (Subwoofer, SAM).

Consequence: The main outputs must be downstream of a different DAC to the pre-outs.

Or happy to be proven wrong.