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Old     (Bumpass1)      Join Date: Oct 2010       03-18-2013, 1:42 PM Reply   
I picked up a new sub for the 'ol vessel and I'm in the middle of installation and have a question about sealed enclosure size. I can build an enclosure that will have a max volume of 1.54 cubic feet. My first design had a volume of 1.46 cubic feet. The question is which one do I go with? I the owners manual for the sub I got it says that sealed enclosure sizing between 1.0 cubic feet and 2.4 cubic feet.
Old     (david_e_m)      Join Date: Jul 2008       03-18-2013, 5:10 PM Reply   
In a sealed enclosure, for the best and balanced sound quality, you typically want to end up with a 'Qtc' (system 'Q' of woofer and enclosure) of around 0.8 +/- 5%. You will need the woofer's Thiele Small parameters to correctly calculate this.
What kind of woofer gives you a 240% displacement range? Are you sure that you interpreted the recommendations correctly?

Earmark Marine
Old     (Bumpass1)      Join Date: Oct 2010       03-19-2013, 4:39 AM Reply   
Thanks for the response David. Here is he link to the manual (page 3) for the sub I have.

Last edited by Bumpass1; 03-19-2013 at 4:43 AM.
Old     (chpthril)      Join Date: Oct 2007       03-19-2013, 6:29 AM Reply   
What kind of power are you going to be feeding the sub?
Old     (david_e_m)      Join Date: Jul 2008       03-19-2013, 8:09 AM Reply   
Kicker builds a molded enclosure for that sub which is in the area of 1.5 cu.ft. internal net after driver displacement. So the 1.54 internal gross enclosure is very close.

Earmark Marine


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