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In Reply to: RE: Dynaco A-25 problem. posted by Tadlo on December 03, 2016 at 12:53:55
I know your question is how to best troubleshoot and repair the tweeter connection.
May I suggest you replace both tweeters? When I rebuilt my A-25's I replaced the tweeters with a modern replacement. Major upgrade. Are the speakers still A-25's? I don't know but they sound great. The stock tweeters paid for half the new tweeters cost.
Follow Ups:
Thanks for the suggestion. I have done that with other Dynaco speakers I have had. I replaced the tweeters with modern Seas tweeters in another pair of A-25's and used Morel tweeters in a pair of A-35's. But the A-25's I have now are in perfect cosmetic condition and I want to keep the original.
Hi Tadlo,
When I look at the A-25's crossover there are a total of 8 spade lugs between the input jacks on the back of the speaker to the woofer and tweeter counting the spade lugs on the drivers themselves. A way to write those off as not being a problem is to solder the wires without the lugs to the terminals. I'm sure for mass production and less driver damage due to the solderers ability spade lugs were chosen for the speed of building and the ease of replacing the drivers. I soldered mine. It's a better connection sound wise anyway......Mark Korda
That seems like good advice, but I am pretty sure the problem is the capacitor. When I by-passed the capacitor the tweeter worked.
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