bassplayer Posted September 9, 2021 Report Share Posted September 9, 2021 Hello, I have a green horn question for the Dynaco experts here. I bought a pair of Dynaco A25XL speakers. The tweeters were toast. I went to the online auction site and found a guy selling a pair of Seas H-086 tweeters. But I made a mistake me thinks. When I received the tweeters I see on the label that they are in fact Seas H-086 tweeters but they are 4 oms. Not the "4/8 ohm" tweeters. After some research I think they came out of a pair of B&O speakers of some kind. So my question is.... can I still use these in my A25XL's or am I stuck with a pair of tweeters that are useless to me now? I checked them on my multimeter and they are 3.5 and 3.8 ohms respectively. BTW, I have already replaced the caps with new Dayton Audio 8.1uf caps. Thanks so much. Cheers. Quote Link to comment Share on other sites More sharing options...
bassplayer Posted September 9, 2021 Author Report Share Posted September 9, 2021 Nevermind..... I'm pretty sure it would change my crossover point. I'll try to move these tweeters on to someone who can use them. 😞 Quote Link to comment Share on other sites More sharing options...
Pete B Posted September 27, 2021 Report Share Posted September 27, 2021 What model tweeter is in the XL, it is different from the non-XL version. Madisound might have a suggestion, they did for the non version. Quote Link to comment Share on other sites More sharing options...
Diogenes Posted September 30, 2021 Report Share Posted September 30, 2021 The A-25XL used the 1" SEAS H086, which was a marked improvement (smoother response, lower distortion, greater extension, ferrite magnet over alnico so no longer susceptible to loss of flux from overpowering) over the 1.5" SEAS H087 used in the A-25. Quote Link to comment Share on other sites More sharing options...
bassplayer Posted September 30, 2021 Author Report Share Posted September 30, 2021 I ended up using the Seas TDC H881 tweeters. The off axis HF response in the XL's is much better than it is in a pair of all original A25 speakers that I also have. The Caps (8.2 and 5.1 respectively) were replaced in both. Here is the before and after pics of the XL's I just completed. They were in bad shape when I got them. I re-veneered the pair in Mahogany. Cheers. Quote Link to comment Share on other sites More sharing options...
VSAT88 Posted November 20, 2021 Report Share Posted November 20, 2021 I love them. They look great ! Awesome job. Quote Link to comment Share on other sites More sharing options...
Ron white Posted December 29, 2022 Report Share Posted December 29, 2022 I like them original if they are just showing honest wear, and the original smooth warm sound is still there but that’s just me ! My old A50 pair will probably out live me. Quote Link to comment Share on other sites More sharing options...
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