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Old 1st January 2004, 08:38 PM   #1
diyAudio Member
 
Join Date: Apr 2003
Location: Chicago area
Default please help me out with this sub disign

I'm helping my brother build a sub. We want to use two vifa mg22w009-08 (8 1/2" drivers) in one sealed enclosure. The sub will be used to compliment a small set of dayton budgets I built for him a while back. Can someone give me their impressions of the vifa drivers and also the optimal internal volume for a sealed cubic enclosure. The final enclosure will look similar to the link below. If you are opposed to this drive maybe you could recommend one better in the $50 ea. price range that is suited for small sealed enclosure

http://ncd296.spencer.netclusive.de/...trilo_urps.jpg

Thanks guys for all the help!
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Old 1st January 2004, 09:29 PM   #2
Wizard of Kelts
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Join Date: Sep 2001
Location: Connecticut, The Nutmeg State
How big of an enclosure were you talking about? What is the approximate internal volume?
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Old 1st January 2004, 11:10 PM   #3
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Join Date: Apr 2003
Location: Chicago area
the internal volume will be b/t 1.5 and 2.0ft3. I don't want to go much larger than 14" x 14" x14". I would like to use 2 drivers or 4 drivers, no larger than 10" and keep the driver budget under $200. The enclosure can be sealed or vented I have no preference. I will power the whole thing with a 250w plate from PE. This sub does not necessarly need to blow the windows out of my house. It will be used in smaller room to add some low end to a pair of book shelf speaker I built.

Any ideas?
thanks a bunch
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Old 2nd January 2004, 01:55 PM   #4
sreten is offline sreten  United Kingdom
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Join Date: Nov 2003
Location: Brighton UK
The attached plot shows one Vifa driver in a 27 litre box (1cuft).
Sealed and port tuning 30Hz.
Note for 2cu internal dimensions are ~ 15x15x15.

sreten.
Attached Images
File Type: gif vifa.gif (7.1 KB, 98 views)
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