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Old 02-05-2009
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Sub air space?

Right now I have two 12inch kicker comps. My question is if I get rid of one and just run a single 12 in a bigger/longer box would I end up getting more bass then running the 2 12s in those little truck boxes?

Please only post a reply if you actually have a great deal of knowledge in car audio.
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Old 02-05-2009
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according to crutchfield, the 12" kicker comps are reccomended to have anywhere from 1.25-3.25 of cubic feet of airspace for a sealed box. that is a large variation. the fact is, anything you change as far as airspace will change the sound of your speaker to an extent. usually if you put your sub in a bigger box, it will have more bass, but will not be as tight and precise. it all depends on what type of music you like and what type of bass you like. if you like rock and clarity, then stick with a smaller unported box. for rap, a bigger ported box will carry bass farther and will seem louder and more powerful. if you want more bass, i would try running both in a bigger ported box. are your subs bridged? do you have a bridgeable amp? if they are bridged, then taking one of them out will increase your impedance(less power) depending on which way your have them bridged.

Last edited by clintusaf; 02-05-2009 at 06:55 PM.
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Old 02-05-2009
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Quote:
Originally Posted by sjwilson3821 View Post
Please only post a reply if you actually have a great deal of knowledge in car audio.
First off, lose the attitude, you wont get any help around here with that. People with various amounts of knowledge can and will post with their opinions, wether it be right or wrong.

And yes, as stated above, it depends on what you listen to. Do you just want pure bass, or do you want a nice, clean, well balanced sound? Smaller boxes will be alot cleaner and punchier while bigger boxes hold the ground pounding notes but tend to be sloppier. Provide more info on what sound you are going for.
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Old 02-05-2009
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I'm not sure what would be considered "more bass".

If you're looking for deeper bass as far as the frequency (hZ), then it's possible that a larger, yet still properly sized & built box could allow your single sub to produce deeper bass, as long as you follow the specs for enclosure size for your sub. If your sub's specs call for a 2cu ft box, you probably won't be any better off installing the sub in a 3.5cu ft box (in fact you could damage the voice coil/spider ***'y).

If you're looking for louder volume, then I'd suggest a properly designed ported enclosure (rather than a sealed enclosure) with a more powerful amp.

Generally ported boxes will produce "louder" volumes (with more power), but can suffer from lower sound quality.

As Yellow_Edge mentioned, sealed boxes tend to have tighter (more accurate) bass with better sound quality. As a bonus, you don't have to do a week's worth of calculations & designs for ports with sealed enclosures.

I gave up on "louder" about 20 years ago.
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Old 02-05-2009
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Originally Posted by yellow_edge View Post
First off, lose the attitude, you wont get any help around here with that. People with various amounts of knowledge can and will post with their opinions, wether it be right or wrong.

And yes, as stated above, it depends on what you listen to. Do you just want pure bass, or do you want a nice, clean, well balanced sound? Smaller boxes will be alot cleaner and punchier while bigger boxes hold the ground pounding notes but tend to be sloppier. Provide more info on what sound you are going for.
Hey man didn't mean to come off rude. I just want to make sure I get good advice before a go blow some coin on something I might not need.
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Old 02-05-2009
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Originally Posted by clintusaf View Post
according to crutchfield, the 12" kicker comps are reccomended to have anywhere from 1.25-3.25 of cubic feet of airspace for a sealed box. that is a large variation. the fact is, anything you change as far as airspace will change the sound of your speaker to an extent. usually if you put your sub in a bigger box, it will have more bass, but will not be as tight and precise. it all depends on what type of music you like and what type of bass you like. if you like rock and clarity, then stick with a smaller unported box. for rap, a bigger ported box will carry bass farther and will seem louder and more powerful. if you want more bass, i would try running both in a bigger ported box. are your subs bridged? do you have a bridgeable amp? if they are bridged, then taking one of them out will increase your impedance(less power) depending on which way your have them bridged.
I do have a bridgeable amp. I appreciate everyones help and I think I am going to go to get a custom box that will fit both subs and have it ported.
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