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Old 28th March 2009, 02:19 PM   #1
CCU is offline CCU  Denmark
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Smile ohh what to do with 24 xls subs

Hi everybody i'm doctor nik. (sorry just saw an episode of simpsons )

I have 24 10" peerless xls 830452 drivers, My question is really simple, what would you do with them?

I myself had two different thinks in my mind,

First idea is 6 basrefleks kabinets with 4 units in, a volume of 180liters and tuned at 22 hz

second idea is bying 24 400grams pasive radiators, but i thought that it might be a little too expensive

I will be using the subwoofers for both music and movies.

i hope YOU have some great ideas or comments about my own,

thanks for sharing your wisdom
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Old 28th March 2009, 03:47 PM   #2
FE3T is offline FE3T  Norway
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How about building 3 with 4 isobaric pairs and a 18" passive radiator in each box.

Or follow your orginal plan with 6 18" passive radiators instead of 24 10" passives

Alternative 3 are a pair of sealed towers with 12 drivers in each.
4 paralleded groups with 3 series wired woofers should ~6ohm load and enough powerhandling to do some serious eq

Alternative 4 are 4 sealed towers with 6 drivers in each
3 pairs with series wired woofers ran in paralell should~5,7 ohm load and still leave enough powerhandling for some eq
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Old 28th March 2009, 04:00 PM   #3
Elias is offline Elias  Finland
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Hello,

Sounds like a dipole subwoofer project. Make it as line array 12 per side.

Even more interesting would be second order gradient subwoofer project. 6+6 per side.



- Elias
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Old 28th March 2009, 04:26 PM   #4
Ron E is offline Ron E  United States
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Do you want to use them all, or do you want to sell some of them?

I guess the first question is: "what does your space look like?"

I think two great dodecahedrons would look pretty cool. If you got 24 PR's you could make 4 great dodecahedrons, each half PR's and half active drivers.

You could make an array of 16 drivers that you could then plug into a wall outlet and tear your home apart with....

You could build them into wall enclosures like a guy named Tom Perazella did with 8 DVC12's, to great effect.
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Old 28th March 2009, 04:40 PM   #5
cuibono is offline cuibono  United States
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If you have a rectangular room, I would do a dual bass array (dba) subwoofer and dipole woofers, and then sell the rest.

http://www.avsforum.com/avs-vb/showthread.php?t=837744
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Old 28th March 2009, 06:08 PM   #6
CCU is offline CCU  Denmark
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Quote:
Originally posted by Elias


Even more interesting would be second order gradient subwoofer project. 6+6 per side.



- Elias
Could you elaborate on that? some literature or something, because i don't really know what that is

Quote:
Originally posted by Ron E
Do you want to use them all, or do you want to sell some of them?

I guess the first question is: "what does your space look like?"


You could build them into wall enclosures like a guy named Tom Perazella did with 8 DVC12's, to great effect.
My room is 60 square meters or about 646 square feet(i think)
the room is on the second floor and therefore have tilted walls.
7,5 X 8 meters

The think the wall sub could be cool, but i'm want the solution to be a little more flexibel. and would prefer if it didn't have to big a footprint

edit-
And if less than the 24 units can do it, i'll sell a couple.
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Old 29th March 2009, 12:24 PM   #7
Elbert is offline Elbert  Norway
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Wow, 24 XLS10 Woofers!?

I would consider building multiple sub woofers and distribute them around the listening room.


Why?

In any room, that is below the size of a large hall, low frequencies emitted from one source, will excite room modes, i.e. standing waves. Above a certain frequency, the number of modes will be so many as to give a statistically average, i.e. diffusion.

If you have more than one low frequency source, you will have, at least in theory, a correspondingly greater number of low frequency room modes, giving a more averaged room response.

This is why I'm planning to build stereo- subs rather than just one.
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Old 29th March 2009, 08:49 PM   #8
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Would it be an idea to go iso-brarik here???

I haven't read much on these drivers, so I could be wrong.

By the way - how did you manage to get that many of those drivers???
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Old 29th March 2009, 09:15 PM   #9
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Quote:
Originally posted by chris661
Would it be an idea to go iso-brarik here???
Not really worth it imo - they live in very small boxes anyway so not much gained.


Personally I'd put them all in one floor to ceiling box in the corner, loaded push - push. I'd run them sealed 30Hz down and cross to my labhorns 30Hz up...

Infrabass baby

Rob.
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Old 30th March 2009, 03:47 PM   #10
CCU is offline CCU  Denmark
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Quote:
Originally posted by RobWells



Personally I'd put them all in one floor to ceiling box in the corner, loaded push - push. I'd run them sealed 30Hz down and cross to my labhorns 30Hz up...

Infrabass baby

Rob.
show of if i had labhorns i woultn't need the xls subs

but why a sealed box, By my knowlege, there are clearly designed for vented/passive boxes
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