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Old 3rd June 2010, 03:41 PM   #1
fv is offline fv  Canada
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Default replacement tweeters

Hi all - I just obtained a pair of Pioneer HPM-100 speakers in near mint condition. The price was right - free. Mt brother-in-law was made to give them up due top their size! As I said, they are almost in near mint condition - the cabinets shows their age - but this is cosmetic. The only other issue I can find with them is that one of the tweeters sounds a little off - distortion at high volume. I would like to replace both of them with new units and am looking for suggestions - something that would match physically, electrically and acoutiscally. Any suggestions ? Could the issue be related to a bad capacitor or other crossover component ?
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Old 3rd June 2010, 03:57 PM   #2
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Location: Near Vancouver
Hi Frank,

Check to make sure it's not one of the L-pads by rotating the knob back and forth. If it turns out to be that you need some anti static spray or in a pinch WD-40 (Gasp!) Replacing a tweeter other than the original can be a little tricky.

EDIT: You said it was at high volume so you're probably right so the second thing to do is pull the tweeter and try turning it 180 degrees. Hopefully it's a misaligned coil that straightens itself out. It's a fingers crossed solution but sometimes by the grace of *** it works.
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Let's help Ruth and Dave
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Old 3rd June 2010, 06:32 PM   #3
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You want to exhaust everything else before thinking about replacing those special Pioneer tweeters.

I'd consider replacing the (likely) electrolytic caps will poly as part of the diagnosis work.

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Old 3rd June 2010, 08:28 PM   #4
fv is offline fv  Canada
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Thanks guys - I will try out your suggestions and post back results
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