What happens to a speaker when you remove the dustcap?

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#21
consort_ee_um said:
Depending on the design, you may now get air leakage between the front and back of the cone. If you do, it affects any bass alignment you care to try. I would not do this on any speaker you were going to use for bass unless it is for OB
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There are a surprising number of factory plugged drivers with holes in the voice-coil former.

dave
 
#23
davidallancole said:
Does anybody have any suggestions for making a whizzer? Paper type? Ways of connecting the seam of the paper together? Any thing like that.
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a little bump on this..

for some time i have the temptation of adding a whizzer to my 10'' siemens 'fullrangers' i like a lot, but can go just up to 9kHz.

i know its not that simple, the most experienced companies spend hundreds of hours of perfecting this approach, but i have some experience from the past with various papers and impregnating them .. lets say technically i can make it but im not sure of the result so it usually demotivates me. But then comes the illusion again - having those 10s with whizzers, going to 17-18 kHz..
 
#24
I just found out on the SilverFLute budget build, removing the dustcap eliminated the terrible 4.4K breakup mode. On my little Fountek's the dustcap caused the worst breakups ( doped it as it was aluminum). I sure wish I had access to a laser inferometry setuo so I could see what was breaking up where and we could be more scientific about it.
 
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