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Problem with speaker at higher volumes - answers????

My buddy who is "internet deficient" asked me to try and find a solution to a problem he has with one of his speakers (Wharfedale but don't have the model although it would appear to be a generic type problem and I assume not indegenious to that particular manufacturer.) He is experiencing what he says sounds like a "thwap" sound coming from one of his speakers when he is playing it loudly and only on very dynamic passages. At lower volumes all is well and apparently the amp isn't clipping. I defer this problem to those more expert than I who reside here... Any possible answers???
rgd

Showing 3 responses by jimbo3

jimbo3
304 posts
 
It's probably the woofer's (or mid-range's) voice coil or the cone "bottoming out" from over-excursion. If it's not already damaged, it will eventually destroy the coil and/or diaphram if one continues to over-drive the speakers.
jimbo3
304 posts
 
Rgd-

From your previous post, you mentioned that the amp wasn't clipping and, assuming also that the amp wasn't distorting, the amp probably is not the problem. You might try an amp with a very high damping factor as that kinda keeps the woofer under control, but more than likely, you are already over-driving the speakers. Maybe the next larger size speaker in that series would help. A powered sub and a separate active x-over could help, too, but check your bank account first.

What do you have for power?
jimbo3
304 posts
 
Don't get wrapped up about damping factors- the 3B should be enough. If you want to keep the "sound" of the current speakers, the next model up in that series of speakers (if available) might be the answer.

Jim

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