Hi everyone. I have a question about setting up a receiver with a speaker system for both movies and music. I have M3's, VP 150, QS 4s, and a sub from another company. I'm running this with a Denon 1802. I've got the speakers set up normally and the sub hooked to the sub out. All speakers are set to small. Love the sound.
I occasionally want to hear just the M3s when I listen to music so....what signal does the B speaker terminal output? Does it mirror the signal sent to the A front terminal (in which case it will be rolled off at 80hz) or does it send out a full signal regardless of the settings used for A?

and...can I run a second set of speaker wires from the B output to the M3s and switch the speaker outputs on the receiver from A to B without hurting either the receiver or the speakers? What would happen if I accidently have both outputs switched on at the same time?