Identify positive and negative on Bang and Olufsen male speaker plugs - AVS Forum
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post #1 of 3 Old 11-19-2013, 03:23 AM - Thread Starter
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I have vintage Bang and Olufsen passive speakers, 2X S45-2 and 2 x P45.  Can anyone assist me to figure out which pin of the 2-pin male speaker cable plug is the positive?  Is it the flat pin or the round pin?  

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post #2 of 3 Old 11-19-2013, 06:27 AM
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Originally Posted by VintageBandO View Post

Can anyone assist me to figure out which pin of the 2-pin male speaker cable plug is the positive?  Is it the flat pin or the round pin?  
So long as you wire both speakers the same way to the receiver it doesn't matter. Technically there is no positive or negative, as the signal sent on the cable is AC. The positive/negative markings are there so that you'll wire both speakers with the same polarity, but what that polarity is doesn't matter.

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post #3 of 3 Old 11-19-2013, 02:42 PM - Thread Starter
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Thanks Bill. 

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