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Wiring, Electrical & Installation
Pioneer GM-A4704 Amp
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<blockquote data-quote="TadeloOrbit" data-source="post: 8666779" data-attributes="member: 676392"><p>Hi,</p><p></p><p>I was working on my car yesterday with a setup I’ve had going for quite awhile now. As I was putting everything back together I noticed something.</p><p></p><p>I have a Pioneer GM-A4704 amp powering 4 x Pioneer 6.5” speakers. I was double checking polarity using a DMM before closing everything up when I realized one speaker was in reverse polarity.</p><p></p><p>Upon further inspection and testing it appears the reverse polarity was coming directly from the AMP output for that speaker. I unplugged all inputs into the amp and checked again and still the polarity was reversed directly at the output of the AMP for only that one speaker. </p><p></p><p>The terminals are setup like this:</p><p></p><p>Channel A + - | - + &lt;~ this one reverse</p><p></p><p>Channel B + - | - +</p><p></p><p>What would cause this only on 1 speaker?</p><p></p><p>Any suggestions?</p><p></p><p>Could this be a electrical issue with the amp?</p><p></p><p>Do you think I should just reverse the wires for this one particular speaker so the polarity is correct according to the DMM? </p></blockquote><p></p>
[QUOTE="TadeloOrbit, post: 8666779, member: 676392"] Hi, I was working on my car yesterday with a setup I’ve had going for quite awhile now. As I was putting everything back together I noticed something. I have a Pioneer GM-A4704 amp powering 4 x Pioneer 6.5” speakers. I was double checking polarity using a DMM before closing everything up when I realized one speaker was in reverse polarity. Upon further inspection and testing it appears the reverse polarity was coming directly from the AMP output for that speaker. I unplugged all inputs into the amp and checked again and still the polarity was reversed directly at the output of the AMP for only that one speaker. The terminals are setup like this: Channel A + - | - + <~ this one reverse Channel B + - | - + What would cause this only on 1 speaker? Any suggestions? Could this be a electrical issue with the amp? Do you think I should just reverse the wires for this one particular speaker so the polarity is correct according to the DMM? [/QUOTE]
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