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Old 12th January 2006, 08:50 PM   #1
Relax is offline Relax  United States
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Question small cube sub with 4 or 6 woofers

I want to make like a cube of woofers. I was thinking like 4 or 6 cheap 6-8inchers on the sides of a cube.

I have found a bunch of different woofers I could use, but is it even worth it if one woofer's frequency response is 55hz to whatever?

I think like 6 small woofers would be cool. I am thinking like ~$10 for each woofer. Cheaper is better though.

Any suggestions, moderate music listening, rarely movies. Small room(dorm).

Its going to mate with two of Cyburg's needles with TB W3 in them.

Also the smallest box possible really.

And the woofers will all need to be firing at the same time i suppose to avoid cancelation, so will this be a problem as far as reduceing ouput? I am up for sealed or ported design...

Also would liek it to be able to run with this amp or similar:
http://www.partsexpress.com/pe/showd...number=300-782

I know its small but I think it would be cool little amp and cube of subs....
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Old 12th January 2006, 09:01 PM   #2
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First off, try and avoid putting woofers on different sides of the box. Cool or not, it's not going to help it sound good. The cancellations can reduce the amount of bass your ears hear.

Second, that amp won't cut it even for small woofers. You will want to consider at least the next step up, I think it's the 70 W unit.

You are far better off to buy one good woofer and not 6 cheap ones, again cool or not.

EDIT: How about two woofers and four drone cones aka passive radiators. Actually on second thought that's a dumb idea.
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Old 12th January 2006, 09:17 PM   #3
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i can't see multiple woofers facing different directions ruining the whole point source idea, wouldn't it just create a better circular pattern of radiation?

I will do the 70 w then.
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Old 12th January 2006, 09:32 PM   #4
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I'll have to let others give you the technical side as all of my dealings are trial and error and I remember there being a lot of error in the trial.

If you do decide to go with six woofers, is there no way you'd be happy with them all on the same side of a non-cubic box?

EDIT: It's not the point source that's so much of a problem as the waves cancelling each other.
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Old 12th January 2006, 09:35 PM   #5
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all the same, this type of thing has been done and pictures posted by one or two of the members here. If you want a very small box, then a LOT of power and some sort of bass extending equalization will be required (linkwitz transform etc.)
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Old 12th January 2006, 09:40 PM   #6
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Cal is right, right, and right.

Bass will do the circle thing without help. One nice woofer would be better than 5 pieces of poopy. With some exceptions the best sound comes from the least number of drivers.

By the time you get the internal volume (cubic feet) for 6 drivers it won't be a little cube anymore anyway.

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Old 12th January 2006, 09:45 PM   #7
Relax is offline Relax  United States
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So is there absolutely no way this will sound anywhere near good? I just want a cube of woofers....

And its not critical listening, just jammin to music in my dorm...
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Old 12th January 2006, 09:49 PM   #8
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What frequency will you roll these woofers off at?
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Old 12th January 2006, 10:44 PM   #9
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If you can find the right 4 / 6 woofers to model well in the desired box size and cross them at a sensible frequency then I can't see a problem. In fact the push - push loading on opposite sides of the box can be of benefit.

You'd need to cross at ~80Hz if you only want 1 'cube' imo .

Cheers,

Rob
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Old 12th January 2006, 10:58 PM   #10
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One of the best subs I've ever heard:

Notice the 3 10's are angled to cancel each others movements out. (push push)


http://www.martinlogan.com/descent_speaker.html#none

3 x 8" could do great at lower spl.

Rob
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