Using a speaker switch backwards will function but you run the possibility of problems. Speaker switches are, typically, make-before-break which means that for a tiny interval both speakers are connected to the amp. This is OK for that use but running it between one set of speakers and two amps means that both amps will be connected to each other for that interval and, depending on the amps, that could be damaging. Get something made for your application.
Two Amplifiers With One Set of Speakers
I currently have an Integra receiver for my home theater setup and a tube amplifier for music. The issue is that I only have one set of speakers. My current solution is to have two sets of speakers cables that I switch at the speakers. It really only take a minute or two to make the switch, but it's enough that I'd listen using the tube amplifier more if it were a more simple switch. I'm thinking about using a speaker switch box and just hooking it up backwards. If I can hear a difference then I would stay with what I am currently doing, but I suspect that it will work just fine.
Any recommendations for a switch box? I'm looking for inexpensive. I would probably get a really short run of Blue Jeans Cable to minimize the length between the two amps and the box and then use my current run to the speakers.
Any recommendations for a switch box? I'm looking for inexpensive. I would probably get a really short run of Blue Jeans Cable to minimize the length between the two amps and the box and then use my current run to the speakers.