How to wire a speaker to multiple amps/preamps?


I am considering having in-wall speakers installed by a professional (including wiring and separate volume controls), but I'd like to keep the front-end electronics up to me so I can take advantage of various deals here and other places.

There will be two "source" rooms, one with a stereo music setup and one with a home theater setup, then several other rooms that have pairs of in-wall speakers controllable using either setup as a source. Each room with in-wall speakers will have independent impedence-matched volume controls.

Wiring the various electronics together is no problem for me, but is it reasonable to do the front end wiring of the speakers to amp or receiver myself? How does one hook up a set of speakers to two different amps?
nnyc
"How does one hook up a set of speakers to two different amps?"

Via a switch. Never connect to amps directly to the same terminals.

Kal
Thanks for the answer. Is it possible the volume controls installed in each room come with switches, or would that be on a "main" switch for all the speakers?
You should probably get a speaker selector with an amp A and B button. You can get one with A/B switches for every speaker. You could also get an A/B switch since you will be using impedence matching VCs.
The volume control should also have a source selector on it. the source selector will select what amp you want to connect to. There is some switching hardware that is used for these applications, Check with an AV specialist they can help you get the right equipment for what you are trying to do.

Mark
You can install a switch next to your volume control. Look for a 'pushbutton' type switch that matches your volume control for a very professional look. Niles comes to mind. I have this setup in my den so that the in-walls are controlled either by the 'local' den setup or the 'house' system depending on whether the switch is pushed or not. It's wired so the volume control works in either case. This isn't exactly 'hifi' but for non critical listening, it's fine. I go to my main room for 'hifi'.