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HOME THEATER SET-UP: Receiver, speaker distribution box, in ceiling speakers?
Setting up receiver which has four wire connections to my speaker distribution box. These are connected via plus to plus, neg to neg. My speakers were installed at the building of the house in the ceilings in different rooms. The wire is heavy gauge and is not coded, ie white stripe, for + or -. As The wires run through ceiling and walls I don't know what polarity they are aqttached to on the speakers. I simply have a two stranded heavy gauge wire for each hookup. I know the receiver to speaker distribution box MUST be + to +, - to -. However is it also critical that the speaker box to speaker be polarity connected? The distribution box has the pos and neg but I don't know as to the polarity of the wires from speakers. Does it make a difference going to speakers?
I've never seen speaker wire without some kind of polarity indication. Even plain old electrical cord has it.
Are you using something like 16 AWG electrical cord for speaker wire? Look for one conductor to have a ridge molded into the plastic outer insulator. Your problem, though, is whether the ridged conductor is wired as + or - at the speaker end, which you can't see.
Does absolute polarity matter? Some say yes, some say no. Your main concern should be ensuring that all speakers have the same relative polarity, i.e., that they're all in phase with each other all the way from signal source to speaker. That really DOES matter. (Some electronics actually invert phase, so that even connecting + to + and - to - results in inverse phase. This isn't critically important as long as it's consistent.)
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