Calling all Dunlavy Gurus


I have read various posts about Dunlavys. But have any of the Dunlavy experts out there gathered the collective data on Dunlavys in one place (best mods, which replacement drivers work best, what not to change, etc)?



americanflag

Showing 4 responses by opus88

I wonder how many SC-4 owners have taken a good look inside and noticed the splayed wire/clips connections to the drivers. Hard to believe, considering all the intelligence and care John Dunlavy put into his very fine product. Would one attach bare, splayed strands of speaker cable in like fashion to their speakers' terminals? Getting rid of those clips, situating the strands together and soldering to the drivers improved the overall coherence of my SC-4s.
Americanflag: Once inside the speaker, you will be able to
see where each clip is connected and how to remove and cut
them. After which, you will twist together strands of the
internal speaker wire and proceed with soldering to the
connectors on the drivers. Since I had never done anything
like this before, I had a friend who is an electronics
serviceman perform the entire job. Incidentally, I have the
improved, Signature version of the IVs.
Yes, there was(is) the SC-4 and the SC-4A. However, there were two versions of the SC-4 prior to the appearance of the 4A. The first had Morel woofers and what were called composite fabric tweeters. In 1995, John Dunlavy made some changes to the original SC-4s. He replaced the Morel woofers with Vifa woofers and the composite fabric tweeters with silk dome tweeters. To accommodate the change in tweeters, he also modified some of the crossover values between them and the midrange drivers. Finally, he strengthened both the internal bracing and binding posts of the 4s.
Kind thanks for the information you've provided, Pdprez. The link material is interesting reading as well.