sealed or ported box for a wagon? - Chevy Impala SS Forum
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post #1 of 14 (permalink) Old 12-25-2003, 02:35 AM
jroner
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So I've heard that a sealed box is good for a pounding, and a ported box is good for a defined bass reproduction. I currently have 2 12" JL W3 D4 subs but no box. I won't be blasting my ears off like I used to a couple of years ago. I am more into the defined sounds now. So the question is, would a ported box do nicely in a wagon or should I still stick to a sealed box? I have no experience with ported yet. Thanks guys,
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post #2 of 14 (permalink) Old 12-25-2003, 07:22 AM
northstar_v8
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It really depends on the model of subwoofer you're using. Different subs like different kinds of boxes.

With your W3s, a sealed box is your fastest ticket to quality bass. The sound will be nice, tight, and snappy. Ported boxes put out a lot more low frequency sound (aka BOOM), and the sound can be a bit sloppier than that from a sealed box. Ported CAN sound good, if the box is designed properly and built perfectly, however.
post #3 of 14 (permalink) Old 12-25-2003, 10:39 AM
ophidia31
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actaully thats the other way around. ported will give you a better sound around a certian hertz level. whichever the port is tuned to. the seal is better because it reacts better to quick bass like that in rock music or other types of music. a sealed box is also more forgiving than a ported box if you turn it up too loud.
 
post #4 of 14 (permalink) Old 12-25-2003, 02:05 PM
azroadmonster
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Quote:
Originally posted by ophidia31:
ported will give you a better sound around a certian hertz level. whichever the port is tuned to.
Que? Not sure what you are refering to, I assume you are talking about efficency at the tuning frequency? If that is the case, you will get more output, not necessarily better sound, the closer you come to the vent frequency. Both types of enclosures can sound incredible, but ported is less forgiving of miscalculations and construction errors. If ported sound worse than sealed, why do most high-end home theater manufacturers use ported enclosures for mid/midbass enclosures, getting the frequency response down to 50hz typically.
post #5 of 14 (permalink) Old 12-25-2003, 06:06 PM
jroner
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I have thought about that too, my Aunt in Miami has a JBL 12" ported sub. The sub is facing the floor while the port is in the back. That thing sounds pretty good. Well anyway, what do you guys think about this ported box?


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post #6 of 14 (permalink) Old 12-25-2003, 07:53 PM
ophidia31
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because high end home theater companies take the time and r and d to get port lengths down to the specs that they want them to and also to make them sound the way they want them to. but were not talking about hometheater systems here. a car is a different ballgame. its hard to get a subwoofer/midrange to sound the way they want it to in a different variety of cars since everything is so close together and many different contours. where as in a house youre sitting farther way from the speakers. yeah, they can be made to sound really good, but overall and ease of installation a sealed box is the way to go.
post #7 of 14 (permalink) Old 12-26-2003, 10:20 AM
camel
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i'll say go ported, the box will be bigger, but you have a wagon so that shouldn't be a problem. use the specs that jl gives you, and build the box to those exact specs. that should give you the best sound, i've built jl vented boxes to spec before and they sounded great. also make sure you've got a really nice amp aswell, thats going to help alot with your sq that your looking for.
post #8 of 14 (permalink) Old 12-26-2003, 07:22 PM
azroadmonster
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Quote:
Originally posted by ophidia31:
but were not talking about hometheater systems here. a car is a different ballgame.
A car is a different ballgame when you talk about how the enclosure reacts with the vehicle, but all standard subwoofer enclosure design theories and practices still apply.
post #9 of 14 (permalink) Old 12-27-2003, 02:34 AM
jroner
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Thanks all you guys. I'll buy that ported box next month.
post #10 of 14 (permalink) Old 12-27-2003, 11:36 AM
4doorSS
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FWIW: IMO Sealed boxes are my favorite. I have bought and built every diffrent kind of box (sealed, bandbass, ported, etc) and Every time I have built a new sealed box afterward..

I totally agree it really depends on your subwoofer aplication, but If you can choose from freeair or sealed, I would go sealed..

Thats my 2 cents worth... [img]smile.gif[/img]
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