Originally Posted By: shoeless
Yamaha RX-V365. It has an A/B speaker switch, but that doesn't control the surrounds or the center channel, which remain "on" even if I swtich the main speakers off.


Acording to the manual (pg-18) this is not true. It says all the other speakers are muted when speaker B is selected.

Your problem may be that you didn't set Speaker-B to be "other room" (see page 32). Once you do this in set-up once, you only have to use the front panel A/B switch and the main speakers should go off.