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Message: <blockquote data-quote="GreenMachine70" data-source="post: 4017361" data-attributes="member: 558975">Our last big #'s build @ our shop consisted of 4 powerbass XA3000 at .5 ohm powering two MOJOQ15" in a 03 silverado, the truck had a blow through with a loading wall box. It did 152.8db@39hz. Now i'm still having a hard time beliveing your in the 147-150 range with a sealed box in your trunk. with or without your "custom vent" in the rear deck...With that being said if you want to be louder than you are, build yourself (or have someone else build) a ported box for your L7's. You have a good start your 15's have a butt load of cone area. I realize you said you dont have enough room for a ported box but try some different box designs for the equipment you have before you start dumping more money into things you may not need. Cause MDF is a hell of a lot cheeper than subs and amps...</blockquote>

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