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AR 3A Tweeter Polarity -- Front Wire Configuration [For Dummies]


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#1 jarussel

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Posted 23 May 2012 - 03:05 AM

I replaced the tweeters in a set of 3As I'm restoring, but there is no indication either on removed tweeter or on the front posts which side is meant to be positive. I have a 50 percent chance of being right, I guess. Anyone have any tips on which of the posts would be positive? Was there a standard wiring configuration for these? It looked like the wires were crossed on the old tweeter in the hookup to the front posts. Does it make a difference?
James Russell
Monterey, CA

Speaker Collection
AR 9LS
AR-3A (restored)
AR-5 (restoration in progress)
AR 2AX (restored and sound fabulous)
AR 4X (recapped)
Dynaco A-25s (recapped and new tweeters)
KLH 26 -- sound better than the 4Xs, but not better than the A-25
TEAC AG-D9320 receiver w/110 watts per channel.
AR XA turntable

#2 RoyC

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Posted 23 May 2012 - 04:32 AM

I replaced the tweeters in a set of 3As I'm restoring, but there is no indication either on removed tweeter or on the front posts which side is meant to be positive. I have a 50 percent chance of being right, I guess. Anyone have any tips on which of the posts would be positive? Was there a standard wiring configuration for these? It looked like the wires were crossed on the old tweeter in the hookup to the front posts. Does it make a difference?


The center posts are positive. The positive lead of the original tweeter is crossed under the tape from the left side to a center post.

Roy
Roy Champagne

#3 Carlspeak

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Posted 23 May 2012 - 12:12 PM

See diagram below...

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  • ar3a connections dwg.jpg

IT'S ALL ABOUT THE MUSIC!

Carl
Carl's Custom Loudspeakers

#4 jarussel

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Posted 23 May 2012 - 01:34 PM

Thanks to both of you; got it.
James Russell
Monterey, CA

Speaker Collection
AR 9LS
AR-3A (restored)
AR-5 (restoration in progress)
AR 2AX (restored and sound fabulous)
AR 4X (recapped)
Dynaco A-25s (recapped and new tweeters)
KLH 26 -- sound better than the 4Xs, but not better than the A-25
TEAC AG-D9320 receiver w/110 watts per channel.
AR XA turntable




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