Yamaha RXA770
RTI AD8x
Sonos Connect - Analoge output split to amp and receiver

I thought I had this all figured out but I guess not. Why must the Yamaha add delay even to an analogue input. I understand that party mode should get rid of delay between Yamaha main zone and zone2 but the problem is I have an adjacent zone on the multi-room amp. When I turn party mode on there is still a delay between Yamaha and multi-room amp. Only way I can turn off delay is by setting Yamaha to Pure Direct. It turns the subwoofer of and I would assume it also turns off bass filtering on the main room in-ceiling speakers.

Am I missing something here? Maybe there’s a way of keeping subwoofer on when in pure direct? I really would like to avoid adding delay devices