the easy solution would normally be to just use any yamaha 2 zone receiver (but does not resolve your desire to ramp with main zone and zone 2 with a single IR command AND still have a zone 2 override); If you don't care about the override; Tape/VCR out to an unused input works well; as does zone B.


Another way to jerry rig this if, as you've stated if you want them to ramp up/down - make sure its capable of zone B and then run an outboard auto switching amp with 2 inputs; one as a high to low level adapter off speaker B set as the primary source, and then the zone 2 line level as as your override...if you have a Yamaha RXA2010; you just need an auto switching amp/speaker selector.