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CELESTION SL6 Si - woofer replacement/repair

The woofer on one of my SL6 Si speakers has started "buzzing" on passages where there is heavy bass. Otherwise, I think it sounds fine. I assume the surround needs to be repaired, but that's just a guess. Is this something that can be repaired for not a lot of $? If so, any recommendations? Alternatively, could I just swap in a replacement woofer (if one can be located)? If that would work, any recommendations re: where to find replacement parts? Thanks!
bartleby1
elizabeth
6,726 posts
 
Have you tried to tighten the screws or bolts holding the woofers in place. Almost all woofers get loose eventually and need to be tightened up. The noise you're hearing is typical of the loose woofers.
Do NOT try to tighten them down hard.
Just tighten them down snug.
And if it IS the woofer, then recone the woofer, not get a new speaker. Reconing shops all over the place can do the speaker and replace the surround and or recone the speaker. Get both done at one time if reconing.
rleff
1,065 posts
 
Give Bill Legall from Millersound a call to get his opinion on this situation;he is well known in the business and highly respected for his work.

Millersound
1422 Taylor Road
Lansdale, PA 19446-1531
(215) 412-7700
roxy54's avatar
roxy54
2,651 posts
 
If you have owned the SL series of Celestion speakers, you will know that these can't be reconed or have the surrounds replaced. The driver was proprietary to Celestion. It was unique in not having a dust cap (which was unusual at that time), and changing it for a different driver would no doubt change the sound of the speaker completely.
Elizabeth's comment is a good one. These drivers need to be checked for tightness on a regular basis. Also check the ribbed aluminum diffraction plates around the drivers for tightness.
You didn't say if you had found any cracks in the surround. If you have, and that turns out to be what is causing the buzzing that you hear, I think that the only alternative will be finding a used driver.
bartleby1 OP
2 posts
 
thanks for all the great feedback. what should i do (if anything) to determine what the source of the buzzing is? - i don't want to do anything to make things worse if i can help it, obviously. this may not be a good thing to do, but i very very gently applied a feather-light amount of pressure to the surround while it was playing and the buzzing went away - not sure what that might indicate.
erikminer
433 posts
 
"not sure what that might indicate"

It means the woofer is beat. Like Rleff said, get a hold of Millersound and have them fix the woofer.. They may be the best speaker repair shop in the country.
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