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'hour-glass' port [message #45274] Thu, 26 August 2004 00:46 Go to previous message
Yury is currently offline  Yury
Messages: 52
Registered: May 2009
Location: Kiev, Ukraine
Baron

hello!
I want to do 'hour-glass' port for my subwoofer.
it's should be round.
how can I make it? which material and method?
theoretically I wish to make it exponential.
thank you


 
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