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I was installing in-ceiling speakers over the weekend. The house was pre-wired for 6 speakers, 4 downstairs and 2 upstairs. The speaker cables to the upstairs have 4 conductors in each cable, instead of 2. How should I use them? Should I connect 2 of the 4 conductors to the + terminal of the speaker, and other 2 to the - terminal?


I appreciate any help?
 

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NO NO NO!

you need to trace the wires to where they all come out of the wall (where your equipment will be).


they probably ran 1-4 cond cable, at the closest speaker, cut the jacket and used 2 conds for that speaker (say the red and black,) then continued to the other one with the green and yellow.
 

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It could be either. You can get cable with 4 strands (Canare 4S11 is one), which makes is easy to biwire speakers (you can connect two each to the binding posts on the amp/receiver, and one to each binding post on the speakers), or it could be one for each terminal for each speaker, as the previous poster said. I guess if, for two speakers, and you have 8 cables, then you need to hook up two to each binding post (or you can only hook one up, it'll just be a smaller gauge cable with less resistance).
 
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