I have a Technics SA-DX940 receiver. It's a standard 5.1, with A/B front speaker selectors; both A and B can be run at once, but not with surround sound. Speakers are Infinity Beta 50s (with the Beta 250 center, no sub).
What I would like to do is have one set of speakers double as both the rear surrounds and the B speakers, so that when using surround sound, they would be the rear channel, and when listening to 2.0 stereo, they would be turned on or off with the B switch on the receiver. I could accomplish this by running to sets of cables from the receiver, one from the B outputs and one from the rear channel, or by running one set of cables and jumping the B outputs to the rear channel outputs.
Will this damage anything? It seems that I would effectively be creating a loop between the B and rear channel outputs, and I'm concerned that this might damage the receiver, or that it would degrade the quality of the sound on these speakers. Any thoughts?