Hey...I posted here a while back but got no replies...I was wondering what dimencions would be good for my sub...I want to fit the sub and the amp down in the trunk where the plastic cover can close and conceal them...the sub is a JL Audio 13W1v2 4-ohm, 200RMS...I bought it mainly because I've heard nothing but good things about JL Audio and because this particular sub was designed for small enclosures...I would prefer a sealed enclosure...nothing fancy...just something that will fit down in the trunk and something the amp can possibly go onto...thx any replies would be welcomed.

Heres a link to JL Audios site with the specs of my sub... JL Audio Products: Subwoofers / 13W1v2

Not sure if you need it but il give you the info on my amp in case...its the Clarion APX1300 300Watt

 

For a sealed box, make the box as big as you can to fit in the space you want. The bigger the box, the better the sound, JL's just don't NEED a big box. The reason for the box is you want to isolate the sound comming from the back of the speaker as it is 180* out of phase. Laymen's terms, bigger is better!

 

Big isn't always better. In a car environment you can usually get away with too big of a box and still get decent sound because there's so much cabin gain, but in other environments too big means your rolloff starts at too high of a frequency and your bass sounds thin. In the car, sometimes you get just the opposite. Because a bigger box will roll off sooner, but at a slower rate, after it's combined with the cabin gain, it can sound a bit boomy. Fortunately, you've got to get a lot bigger than specified before it starts to get too bad, so going 15 or 20% over the recommended size won't be much of a problem.

In a car environment your big worry is power handling. The bigger your box is, the less power handling you'll have.