Welshbassist Posted March 2, 2021 Share Posted March 2, 2021 (edited) Hi all, I was playing along at home on a DB112 and noticed that at louder volumes the speaker was clipping really badly and obviously when I was playing on the B string or really digging in on on E. Head is rated appropriately so not an issue there. Having removed the grille I noticed the dust cap seems to have come undone at least half way of the way around. Could this be the culprit? Doesn't seem to be any obvious damage to the come or elsewhere. Would be keen to know if re gluing this (or something else!) could resolve it before I take the plunge on a replacement driver. Any help much appreciated Edited March 2, 2021 by Welshbassist Quote Link to comment Share on other sites More sharing options...
Dan Dare Posted March 2, 2021 Share Posted March 2, 2021 I'd try re-gluing the dust cap. You need a flexible glue and one that doesn't contain powerful solvents (driver manufacturers use latex-based glues on cones). You've nothing to lose by trying. It won't hurt the driver any more than it might be already. Given that the noise occurs when you are playing low and hard, which demands more extreme cone movements, it might help. 1 Quote Link to comment Share on other sites More sharing options...
Welshbassist Posted March 2, 2021 Author Share Posted March 2, 2021 Thanks Dan. That's what I was hoping but as not particularly well versed in this thing thought it better to check first. I'll give that a go! Quote Link to comment Share on other sites More sharing options...
stevie Posted March 2, 2021 Share Posted March 2, 2021 Fane used to use Bostik all-purpose clear glue to glue their cones. ATC used Araldite. The Bostik is easier and cheaper. 1 Quote Link to comment Share on other sites More sharing options...
Welshbassist Posted March 3, 2021 Author Share Posted March 3, 2021 Lovely thanks Stevie. Should keep me busy for an afternoon this weekend Quote Link to comment Share on other sites More sharing options...
Welshbassist Posted March 6, 2021 Author Share Posted March 6, 2021 Thanks for all the help with this. After a bit more reading on various forums I decided to replace with a new cap. I figured it would take to the glue slightly better as the edge on the old one was slightly frayed. Bought some sureloc cyanoacrylate adhesive from an audio equipment site. Bit more expensive but worth it for the peace of mind I was definitely getting the right stuff IMO. Once I removed the old one it was immediately apparent that it was the dust cap causing the issue. Really pleased with how it turned out, sounds and looks great. 3 Quote Link to comment Share on other sites More sharing options...
nilebodgers Posted March 6, 2021 Share Posted March 6, 2021 That cup was a great bit of lateral thinking! 2 Quote Link to comment Share on other sites More sharing options...
jimbobothy Posted March 6, 2021 Share Posted March 6, 2021 ... great job, very neat 🔈👍🏼 1 Quote Link to comment Share on other sites More sharing options...
yorks5stringer Posted March 7, 2021 Share Posted March 7, 2021 Ceramic speaker? Quote Link to comment Share on other sites More sharing options...
Welshbassist Posted March 8, 2021 Author Share Posted March 8, 2021 20 hours ago, yorks5stringer said: Ceramic speaker? Yep! Quote Link to comment Share on other sites More sharing options...
Maude Posted March 8, 2021 Share Posted March 8, 2021 On 06/03/2021 at 15:53, nilebodgers said: That cup was a great bit of lateral thinking! Yeah but he got some funny looks lugging the speaker cab in there. 😉 1 Quote Link to comment Share on other sites More sharing options...
Lfalex v1.1 Posted March 17, 2021 Share Posted March 17, 2021 Nice work there, but I feel compelled to add this... Quote Link to comment Share on other sites More sharing options...
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