I have a Harman Kardon AVR 330 receiver that is setup in a 7.1 configuration.I want to add 2 speakers in the short part of an L shaped room to add more oomph to that area as it has no speakers now.(this is for music only,2.1)My receiver does not have an A/B speaker switch and the 2 zone is being used in the 7.1 setup.What options do I have?Thanks in advance,Mike.

does it have pre-outs, you could add an amp and the speakers to that.

... or just use an external A/B switch.