Andrew. As we are still in the pre-production stage... have you thought of adding something like this Wolfson Audio Card onto that air. It would then make it a multi media powerhouse as it could be integrated into a higher audio system, and allow for external devices to stream into it.

Just a thought as it's already designed and built.

Anthem: AVM60, Fosi DAC-Q5
Axiom: ADA1500, LFR1100 Actiive, QS8, EP500, M3, M3comp, M5