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Building a Subwoofer
Building a Subwoofer
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Old 26th August 2002, 12:56 AM   #11
Xyberz is offline Xyberz
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How bout a pair of Peerless 8" model 850136? I might be able to pick these up at even a better price than the Ultimates? Specs below:

* Power handling: 150 watts RMS/210 watts max * Voice coil diameter: 1-1/4" * Voice coil inductance: 2.6 mH * Nominal Impedance: 8 ohms * DC resistance: 5.9 ohms * Frequency response: 29-4,000 Hz * Fs: 28.2 Hz * SPL: 89.5 dB 2.83V/1m * Vas: 2.82 cu. ft. * Qms: 3.5 * Qes: .29 * Qts: .27 * Xmax: 4mm * Net weight: 3.8 lbs. * Dimensions: A: 8-1/2", B: 7-3/4", C: 3-3/4", D: 4"

Also the 10" Peerless CSX model.

* Power handling: 200 watts RMS/280 watts max * Voice coil diameter: 1-1/2" * Voice coil inductance: 2.9 mH * Nominal Impedance: 8 ohms * DC resistance: 5.5 ohms * Frequency response: 23-1,800 Hz * Fs: 22.6 Hz * SPL: 88.2 dB 2.83V/1m * Vas: 5.10 cu. ft. * Qms: 2.56 * Qes: .40 * Qts: .35 * Xmax: 9mm * Net weight: 6.8 lbs. * Dimensions: A: 10-1/16", B: 8-1/2", C: 4-1/4", D: 4-1/2".

I understand that Peerless is a really good brand. Maybe better than the 10" Ultimates? Not sure, I'm still new and would like to get some feedback regarding these three models. Also I would like to stay within the small box region without any real loss of quality or sound.
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Old 26th August 2002, 05:57 PM   #12
schizeckinosy is offline schizeckinosy
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Location: Gainesville, FL
Default really small box

If box size is of overriding concern, then you might want to look at an isobarik setup. Really small box with no loss of quality. Double the drivers and half the efficiency, though . Basically it is two drivers sandwiched into one, installed in one hole.

Look at some car audio designs for this one.

Cheers, Dan
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Old 27th August 2002, 10:05 AM   #13
Xyberz is offline Xyberz
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I've found some info on Passive Radiator subs, just like the awsome Sunfire sub. I think I'll save up some more dough and make a small compact enclosure like the Sunfire. Would the below setup be pretty good?

Peerless 10" XLS Sub (About $120)
(2) 10" Passive radiators fromHuman Speakers (Only $32 each!)
250W Subwoofer Amp from Partsexpress.com ($120)

I'm not sure what type of crossover to use, of maybe just the one that's built in the amp. So total comes to about $305. Not bad for a passive radiator sub.
The sub will be built pretty much the same as
Adrian's Thunder Box
Hopefully the enclosure can remain to about 1 - 1.5 cubic foot and hit about 20Hz or so. Is this a possiblity without spending anymore money? BTW, wood will be free from my wonderful friends over at our local hardware shop.
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Old 27th August 2002, 12:00 PM   #14
navin is offline navin  India
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at $50 for a driver it is time to search the discount bins for a 8 or 10"

in general look at Peerless (it is now a Vifa company along with SS), Dayton, or maybe even a car woofer.

i have seen quite a few 8" and 10" drivers (single) but forget where as I write this.

navin "to box or not to box - THAT is the question"
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