Ported or sealed sub box?

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ctm..squirtsalot

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« on: May 14, 2011, 06:43:29 PM »
I am going to put 1 10" sub in a truck box in front of my feet in my open bow Carrera. What would sound better, a ported or sealed box?  ???


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« Reply #1 on: May 14, 2011, 07:41:19 PM »
Depends on the sub....Sealed might be ok in your placement.  I have a closed bow with my subs facing forward and my ports to the side.

Nixonnow

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« Reply #2 on: May 14, 2011, 09:14:16 PM »
I am going to put 1 10" sub in a truck box in front of my feet in my open bow Carrera. What would sound better, a ported or sealed box?  ???

as far as i understand it....sealed is clean bass and ported is not. but ported "hits" harder then a sealed box.
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ctm..squirtsalot

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« Reply #3 on: May 14, 2011, 09:35:11 PM »
Thanks for the info. I found a ported box on Crutchfield that has the ports pointing the same way as the sub. Does anybody see a problem with that or would I be better off with top or side ports so the soud would have something to hit bounce off of.

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« Reply #4 on: May 14, 2011, 09:49:14 PM »
The box I used was ported and the wooofers  pointed towad each other and sealed behind plexiglass. the ports were on top where the back of the speakers were and it had some awesome thud to it.  Best 100.00 bucks I spent at the swap meet and it was all new stuff but not name brand stuff and I never had a problem with.  I hated to pay the price for name brand stuff that I thought would get stolen anyways.
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« Reply #5 on: May 14, 2011, 09:59:04 PM »
Thanks for the info. I found a ported box on Crutchfield that has the ports pointing the same way as the sub. Does anybody see a problem with that or would I be better off with top or side ports so the soud would have something to hit bounce off of.
That should be fine....I went with side ports to utilize all air space.

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« Reply #6 on: May 15, 2011, 07:29:48 AM »
Nixon is correct.  The ported box hits much harder but if you are going for a nice sound go with the sealed box it has a much tighter bass hit.
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ka0tyk

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« Reply #7 on: May 15, 2011, 10:49:24 AM »
a sealed box will be smaller, but require more power to push.   if you use a polyfil inside the box you can get a sealed box pretty small. 

a PROPERLY TUNED ported box will be a little bigger but with less power produce more sound.  but it needs to be properly set up.  most manufacturers will give you the cubic feet of space, and a port dimension.  you can also experiment with port tubes rather than just a hole to help with sound and tuning.

a bandpass box gives the best of both worlds.  a sealed chamber so the sub has something that will push it back when it hits hard and a ported side to produce a LOT of sound.  but they're big. 
« Last Edit: May 15, 2011, 05:59:54 PM by ka0tyk »

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« Reply #8 on: May 15, 2011, 05:42:27 PM »
Somewhere in my stash I had a book from many years ago when I worked at Radio Shack (When it WAS a cool place to shop).....Anyway, there are many mathematical equations based on technical info from your woofer or subwoofer manufacturer dictating exact optimum cabinet volume for any given speaker. They were usually VERY large numbers, so you could also equate smaller cabinet volumes and filter in port diameters and lengths to compensate for the smaller volumes. (Back then, most quality speaker crossover networks used light bulbs disguised as fuses as protection, beleive it or not. Light bulb filaments would not affect dynamic range where a fuse tended to muddy the mids/highs, and when replaced with fuses, an easy assumption, sound quality went to crap)

But enough telling how old I am.................. :sly:

If I remember right, the important numbers were Resonate frequency the the Qe number.......been years guys.  :banghead:

Today, music is very different, and all people want is "do it bump?", not audial intregrity, So probably not important as it was in those days.

As it is, I agree, a sealed box "hits" harder, but takes a ton of power to do it, where a ported box is far more efficient at the same SPL. The quality of the bass coming out? Well, depends on what you listen to I guess.

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ctm..squirtsalot

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« Reply #9 on: May 15, 2011, 06:04:22 PM »
So the way I understand is sealed "clean bass" sounds better if you listen to rock, I do. Ported "dirty bass" sounds better if you listen to music like the LADIES like. As to who looks better shaking there ASS in the sun to there favorite tunes??  Ported it is. Thanks for all the help and knowledge.  O0

 


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