12's not loud before enclosure???

There's nothing stopping the summation of the front and back waves so you have complete cancellation.
Boxes prevent this from happening.
You will not get complete cancellation. Complete cancellation would mean you would not hear it at all. This is fairly difficult to do, even when trying.
 
the guy is a noob and everyone is a smartass? props to those who are willing to help and not be a dyck about it
In all fairness, he already knew the answer, or he wouldn't have purchased an enclosure to begin with. Its like someone saying "hey guys, I have my tires on order, but decided to take my car around the block without any tires.... will it be faster if I put tires on it?"
I think he deserves a little good natured ribbing for asking such a common sense question.

 
In all fairness, he already knew the answer, or he wouldn't have purchased an enclosure to begin with. Its like someone saying "hey guys, I have my tires on order, but decided to take my car around the block without any tires.... will it be faster if I put tires on it?"
I think he deserves a little good natured ribbing for asking such a common sense question.
I kind of disagree ... Before I tried it myself, I didn't know the exact effect an enclosure would have on a speaker ... I do now though!

OP ... Here's a good example. I installed a set of 6-3/4" Alpine full range speakers in my truck's doors. Before screwing the speaker into place, when I first plugged the speaker in & turned on the stereo on to make sure it was working, while holding the speaker in my hand, it sounded like complete cr@p, with no bass whatsoever. As soon as I held it up into its final mounting place, so I could screw it down ... WOW: bass! Pull it back away from the door: Cr@p again. Night & day difference. You are not supposed to hear the back of the speaker. You can even hear the bass increase as you put the speaker closer & closer to the hole.

And that's with just a little 6.5" mid-woofer ... Imagine the difference with a sub! In fact, I did also try this with a 10" sub: With the sub sitting on my seat not in any enclosure, you can almost not even hear it; Set it in its box, and BOOM, it's pounding out the bass. I think it's that subs need the right amount of restriction behind them, to create the right amount of pressure, in order to direct their waves outward as designed. There may be more the reasoning, but I'm no expert; I just know what I've experienced.

 
You will not get complete cancellation. Complete cancellation would mean you would not hear it at all. This is fairly difficult to do, even when trying.
For all intents and purposes, a subwoofer without acoustic suspension is useless. Yes, there will still be an amount of functional wave left over, though immaterial.

 
For all intents and purposes, a subwoofer without acoustic suspension is useless. Yes, there will still be an amount of functional wave left over, though immaterial.
Acoustic suspension has nothing to do with it. Many subs run infinite baffle, relying solely on their own suspension, quite sucessfully. What was being discussed here was a baffle separating front and rear waves.

 
I kind of disagree ... Before I tried it myself, I didn't know the exact effect an enclosure would have on a speaker ... I do now though!
You weren't sure placing the subs in an enclosure, rather thn just sitting them on the floor on their magnets, would improve performance?
 
Acoustic suspension has nothing to do with it. Many subs run infinite baffle, relying solely on their own suspension, quite sucessfully. What was being discussed here was a baffle separating front and rear waves.
I understand and that was rather implied when I said there's no separation between front and back waves, creating a canceling effect with minor residuals.

And that's true, as dipole operates in nearly the same manner but without complete separation of front/back waves like IB.

 
In all fairness, he already knew the answer, or he wouldn't have purchased an enclosure to begin with. Its like someone saying "hey guys, I have my tires on order, but decided to take my car around the block without any tires.... will it be faster if I put tires on it?"
I think he deserves a little good natured ribbing for asking such a common sense question.
exactly.

 
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