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... sound batting and/or weighting speakers ...

Hello to all... 

Need some thoughts and/or suggestions: I am using a pair of KEF Q1s - luv the sound, so much more full than I ever expected - and the driver has such cone extension that the speaker box really vibrates. Now - I am assuming that the vibration really = the possibility of distortion ( or a smearing at higher volumes, tonal deformity, if that is different) and I am wondering if this is more controllable by:
Adding more sound batting into the enclosure (thru the bass port)
Weighting the speakers with a bag of lead shot (?) over the top of the driver/cabinet box ( the cabinet is not flat on top, so I can't use a brick or solid weight; I'm guessing the weight should be something moldable, so the lead shot in a bag is possible if I can figure a way to affix it to the cabinet...)

Thoughts? Suggestions? Alternates?
insearchofprat
three_easy_payments's avatar
three_easy_payments
2,097 posts
 
These are the bookshelf speakers that weigh 13 lbs correct?
tomic601's avatar
tomic601
12,869 posts
 
Careful disassembly with Dynamat or similar product applied inside cabinet, overlapping seam on corners may help a bit.
douglas_schroeder
3,281 posts
 
Predominantly driver distortion, and tweaking, treating the cabinet will do little to address it. Move on, go find much better, because imo this is a very compromised design and there are worlds of improvement available on used and new market. 

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douglas_schroeder
3,281 posts
 
It's a 13 pound speaker including drivers! That's what is causing it! There is no recourse for a design like that being driven at higher levels! 
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