Will this receiver's A/B switch let you play both pairs together?
Can I play both sets of speakers as my main front at the same time?
The biggest issue with this receiver is what audio sources you are able to play from the Main Zone and Secondary Zone. You WILL NOT be able to play digital sources off of zone 2, so, the only way I was able to get this to work easily was to by a 2 source x 4 channel switch from a different source, which this receiver was very capable of driving our 4 sets of speakers. I connected the FR and FL speakers to the A input on the switch, and connected zone 2 to the B input, so, able able to play different sources on all 4 sets of speakers, or, zone 1 across all.
As a lot of audio relies heavily on the center channel, you can get around this by using the mono mode on the speakers. It works nicely if you're watching a football game or some sporting event.
Best regards.