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http://www.decware.com/whorn.htm

provided you're willing to give up most of the hatch area, this is one hell of a DIY sub to throw in our cars. using the setup for 10's and the 'shorter' variation of the sub, you end up with something about 36"w x 24"d x 13.5"h which just fits in the back if you take out the deck. :) it's .75" MDF and you're using 2-4 10" sub drivers so it will be damn heavy, but oh god it's loud! many a competition has been won using this, both SPL and SQL. I suggest reading in their forums if you're really interested. If I had the money to replace my stolen head unit, I'd have installed the one I built and quoted some SPL figures but you can get good info from their site on all that.

-tom
 

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It is a nice box. But it is really nothing more than a port tuned box, that takes up an immense amount of space. I've always prefered smaller enclosers, I find they tend to be more "musical" than most "boomy" ported enclosures. However, I've never seen one of these in action so I can't really say what would be best.
 

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If your going to take up your whole trunk area, why not just custom make something 10x better than that :? Me and a friend are customizeing his hundai elentra right now...and it's coming out good. We took out his back seats, made a new floor, built two angled boxes for 12" we built a big box that sits up against the back wall for 2 12" and we have an amp and capacitor box built. When you open the trunk up a little tv comes down...it's coming out good and we're planing on taking it to sound competitions. We should be done with everything by the end of june. I'll post pics then 8)
 

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too big, too bulky

kinda neat, but why spend all that time and energy building a massive box when you can get similar sound and performance out of a good sealed enclosure thats properly matched to the subs thiel-small parameters?

have you ever noticed... the most expensive, highest quality home towers out there are either sealed or ported, but not bandpass?
theres a reason for that, and that is that sealed are easier to make, and to make sound good.

of course, if your just doing it for show points, then go nuts and have fun.
 

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Folded horn subs are very efficient and will get very loud with only modest power, however, they do suffer from horn distortion and given that the speakers are completly removed from the open air, the crossover point would need to be below 100Hz to keep the mud to a minimum.

I own a number of horn loaded subs that I use for PA with bands. The new trend is to use ported 18" subs for PA, but the old horn loaded cabinets (horn distortion and all) still work pretty well, and their efficiency is expensive to duplicate with ported cabinets.
 

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I don't see and problem with the crossover point being a 100Hz or below. Your mid bass or midrange drivers should be picking up those frequencies any how. In every install I do at my shop I cross the subs over between 70 and 80Hz. Any thing above that is way to high for subs to be playing. Just my 2 cents.
 
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