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Old 27th April 2002, 04:39 PM   #1
jleaman is offline jleaman  Belgium
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Default Any one know of a ..

Hey there all im seeking yet another Subwoofer. i have a 15" usd sub now ( Car audio subwoofer good driver..) i am looking for a good hi excersion 10" driver any one know of one i have the power to power it but my goal is to have a ported box with a 10" 4 or 8 ohm will work..

Jason

have a look at my usd that i have now..

www.citytel.net/~jleaman
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Old 27th April 2002, 11:54 PM   #2
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Default Why not try this, you might just as well do a good job of it

Hmmm, seems like car audio meets the home.

If you’re looking for a solid subwoofer driver, give http://www.blueprintdrivers.com a try. It might still be a while till they’ll have stock again, but a 1201 should do you fine. While you’re at it, give ESP a look at http://www.sound.au.com for articles, schematics and even some kits for active crossovers and amplifiers (even if it's just for inspiration). You might also consider changing your main speakers at some stage. Even though I cannot vouch for them out of experience, the following seem well designed with a strong emphasis on value.(http://www.speakerbuilder.net).

For a funky design, use speakerbuilder’s components and crossover (Parts Express), but put the woofers in an overstuffed sealed box. Then augment that with a BPD 1201 in side-firing configuration (in a 40-80l sealed box) and bi-amp at, say 250 Hz. Something like a poor man’s active NHT 3.3
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Old 28th April 2002, 01:00 AM   #3
jleaman is offline jleaman  Belgium
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Default What about ported enclosure .

What about ported enclosure i would like to have a ported enclosure because it goes lower and doesnt require alot of power to power it at all eg my 15" sub sounded horrible and there techs at usd suck ***.. there usless and jerks..

i would like to make small but power full that is why i said 10" - 12" any one know if a good idea of a dual 8" bandpass box..
i had a band pass 10" and it killed my 15" sealed but now that it is ported it is good..
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Old 28th April 2002, 01:01 AM   #4
jleaman is offline jleaman  Belgium
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Default What about ported enclosure .

What about ported enclosure i would like to have a ported enclosure because it goes lower and doesnt require alot of power to power it at all eg my 15" sub sounded horrible and there techs at usd suck ***.. there usless and jerks..

i would like to make small but power full that is why i said 10" - 12" any one know if a good idea of a dual 8" bandpass box..
i had a band pass 10" and it killed my 15" sealed but now that it is ported it is good..

www.citytel.net/~jleaman

jleaman@citytel.net

jason
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Old 28th April 2002, 01:55 AM   #5
Wizard of Kelts
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Jason:

A 10" ported will outplay a 15" sealed. Can I have an idea as to just how big you are willing to go, volume-wise, on your sub?
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Old 28th April 2002, 02:23 AM   #6
jleaman is offline jleaman  Belgium
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Default Silly

I said that i had a 10" sub that out performed my 15 when it was sealed..

Silly.. : O)
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Old 28th April 2002, 02:28 AM   #7
Wizard of Kelts
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Yes, I was simply pointing out that your experience of a 10" ported outplaying a 15" sealed was a well-established phenomenon.

About how big a box do you plan to put your ported 10" into?
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Old 28th April 2002, 02:29 AM   #8
jleaman is offline jleaman  Belgium
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Default humm..

I dunno it all depends i would l9ike to keep it small but what ever will work..

j'
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Old 29th April 2002, 05:20 AM   #9
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Depends on how you define "small". About the smallest I can come up with that will make a really good subwoofer is the Peerless XLS 10" 5 ohm, number 830452. This will have a 3 dB down point of 32 Hz in a 1 cubic foot box, (with a 3" diameter port), or 1.25 cubic foot box, (with a 4" diameter port).

A 3" diameter port will need to be 19" long. A 4" diameter port will need to be 34" long, and will require some PVC elbows from the building supply store to fit the port into the box. That is why you need to make the box 1.25 cubic ft if you use a 4" diameter port-it takes up more space in the box than the 3" diameter port.

The Peerless XLS 10" is about 86 dB senstive at 1 Watt, or 88.4 dB senstivive @2.83 volts.

The following graph shows the response for either of these boxes @ 1 Watt. The green line is the point at which the speaker is playing 3 dB below midpoint.

I can recommend other drivers if you want to make the box larger, say 2 cubic feet or larger. Those will go deeper than this 1 cubic foot enclosure will go.
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File Type: png peerless xls 10in 1 cu ft.png (1.9 KB, 1075 views)
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Old 29th April 2002, 06:21 AM   #10
jleaman is offline jleaman  Belgium
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Default ok..HOw about.

ok that sounds good so i have did some calulations how about 12" x 16" x 21 " and the subwoofer on the face of the 12 x 16

Height 16"
Width 12"
Depth 21"


And the port on the back of the sub so that it is facing back..


Also here is apic of my 15" usd sub when i just got it off a friend.
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File Type: jpg epsn0053.jpg (81.0 KB, 1075 views)
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