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Finding pre-wired speaker wire in walls

post #1 of 4
Thread Starter 
When my house was built, they pre-wired the walls for 5.1 setup. Unfortunately, the didn't mark where the rear surrounds are. I don't really need the fronts because I"ll run them right from the receiver, but I definitely need the rears. I will probably call them, but I'm afraid the company is going to want to charge me to locate them. Can I find them myself? How? I've gone up in the attic and you can't see where the run down in the wall from there.
post #2 of 4
Zircon and others make metal finders that can detect copper and other non-magnetics as well as steel in floors and walls. I don't know if they can detect a small copper wire. You might write or call them, http://www.zircon.com

or this-

post #3 of 4
Call the contractor. They shouldn't have to 'find' them for you, they should have inspection reports showing where the wires are.
post #4 of 4
I believe they sell kits for trade contractors that inject a signal on the conductor on one end, and then a handheld signal tracer picks up radiated signal from the wire carrying the injected signal.

I've seen these used but never learned what they're called. Talk to a professional contractor and see if they can offer suggestions.

I imagine the injected signal would be pretty strong, so be sure there are no components on the other end of the wire!
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