There's only one problem with the article. His van is not the largest car stereo. Ray Rayfield of TIPS, here in Pearl MS, owns the largest car stereo. His last combo was 144 Polk DB 12" subs, powered by 24 Linear Power custom built 4.1 amplifiers that produce about 5,000 watts each. It spidered a 1" thick bullet proof windshield when he "burped" the system. I'm guessing it is in the neighborhood of 180-182 db.