This vehicle was first brought to my attention by Andy Canaza, who works for DUB Magazine as their special projects builder. We collaborated on two previous gigs, the first was Snoop's Monster Cadillac and the second was SONY's Sema subwoofer stage. Both previous systems used SONY products. I am the facilitator for special projects requesting PWK Designs enclosure modeling service.
Andy said DeSean wanted the car to be pretty mean between 30 and 50Hz on the hip-hop he listens to most. One major prerequisite was that he wanted no trunk rattle. This, of course, meant that we could not model any alignment that pressurized the trunk. Another major factor was that we could only choose from JL's product offerings. DeSean wanted JL Audio. One good thing was that we could use anything from a pair of 13W7s and two 1200/1s on down to any quantity of anything smaller.
With the constraints of the maximum allowable box dimensions, the location of the box and the arm rest vent into the cabin, PWK modeled the pair of 10W6s to get the job done best, coupled to ample power from a single 1200/1. The enclosure height didn't allow for 12s or larger, so we were limited to 10s or smaller. At the headrest, none of the W7s came close to the sensitivity and bandwidth of the W6s and the W3s just couldn't hang.
This was started back in September and was completed not too long ago. A writeup should be out in a soon-upcoming issue of DUB Magazine. Check it out and enjoy!