Question about Kole audio KMX-15 Car Subwoofer

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Trying to put ported reccomended subs in sealed box.

Hello, I was thinking about trying a pair of the Kole Audio KMX-15 subs. Only problem is that I have made a custom box that is only 1.6 cubic ft. per side and sealed. These subs only reccomend a 3 ft. ported enclosure. Can I even put these in a sealed box? Or what will happen? Also I have some 4 inch ports ithat I could put one in each , not sure what freq. it would be or if it would sound good. I am running a MA Audio HK4000D amp off 3 batts. will be running 3600W RMS X1 at 2 ohm which is what impedance I am going for. Please let me know if these will work, or if I should just get he Lanzar OPTI1532D subs like planned. Thanks alot!

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Well, 1.6 cubic foot for a 15 is not nearly enough. A ported box for 1 15 should be in atleast 3 cubes by itself. I suggest building a new box yourself or getting someone else to do it for you. If factory specs on those subs is no larger than 3 cubes per sub then I'd get the box built to 3 cubes per sub after all displacement and tune it in the upper 30's range. Putting big subs like that in a small sealed enclosure can and will damage a sub. and if you try to port an enclosure that is too small to begin with that will also hurt the woofer. Do it right or learn the hard way.

Posted on May 31, 2010

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Pounds per sq ft is a measure of pressure, while lbs / cu ft is a measure of density, weight per unit volume.

I think maybe what you are doing here is converting the weight of concrete in a 1" slab, where a sq ft would contain

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