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Old 25th January 2010, 08:00 PM   #1
santiu is offline santiu  United States
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Join Date: Feb 2005
Location: Los Angeles
Default What to do with these 10" drivers?

Here's the specs:
Fs 26.6Hz
Qts 0.23
Qes 0.24
Qms 5.7
Re 3.2 Ohms
Vas 2.2 ft^3

I've got 4 of them. Open to all ideas that don't require any active EQ circuitry. Sensitivity is more important than extension. Planned use is to serve as PA subs for one party a year, so they don't need to go low. Normal pro-sound requirements about durability don't apply as much since it's a once a year party. Size is not of much concern other than the cost of the wood to build it.

So, ideas? Thanks a bunch!

Last edited by santiu; 25th January 2010 at 08:09 PM.
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Old 25th January 2010, 08:15 PM   #2
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Join Date: Feb 2008
Location: Sheffield
Low fs and qts suggests a ported box.

With 4 of them, you could go low, and loud enough for most house parties...

Any ideas on Xmax, power handling, sensitivity?
My work: www.grimshawaudio.com
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Old 25th January 2010, 08:23 PM   #3
santiu is offline santiu  United States
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Join Date: Feb 2005
Location: Los Angeles
Xmax 13mm
power handling 200W
no idea on sensitivity
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Old 25th January 2010, 08:37 PM   #4
infinia is offline infinia  United States
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Join Date: May 2005
Location: SoCal
Build Bandpass Boxes. one octave range say 35-70 Hz. U can use the shareware program Unibox (Excel SS) to design. This program lets you optimize either for gain or for wider bandwith.
4th order Bandpass Box is with the driver buried inside between a sealed chamber and a ported chamber to the outside. Simple to build with better efficiency than a single ported box,

Depending on make of driver it would be best re-measuring basic T/S to have better chances for success.
like four million tons of hydrogen exploding on the sun
like the whisper of the termites building castles in the dust
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