Would taking the G65 left and right front SL out to the 218 SL in work? The 218 would then connect to you amplifier and analogue speakers.

The MQA (and other) files played directly by the 218 would be limited to stereo but you would still have the surround features for sources connected there.

Not sure how comms and controller set-up would work.

I posed a similar question here and was surprised that apparently no-one had tried that configuration.

In the spirit of Spinaltap, I would like to confirm that I am not involved in the corrupt theft of a global sport.