In order to fully comprehend the decibel capabilities of this '02 Escalade EXT, you may want to stand next to a shuttle launch, or get smacked in the cranium with a 6-ton wrecking ball flying at 70 mph. Exaggerations? Not exactly. You see, this truck was built to showcase MTX's latest mega-subwoofer, its Jackhammer. An appropriate title because it literally puts a migraine-sized seizure on your eardrums. Yeah, we think it's pretty cool, too.
Each Weighing in at 369 pounds and measuring 22 inches wide, the MTX Jackhammer subs are housed in an aluminum box that can handle the 185 decibels of sheer audio terror.
Designed by the MTX creative group, consisting of Jason Planck and Craig Marsh, to be loud, beautiful, and exquisitely built, the Cadillac achieves each of its goals with flying colors. Removing the interior, door panels, and carpet allowed the MTX crew to cover each bare piece of metal with yards of Hushmat. With the seats out, it was recovered in black and red suede with black leather capping off the look. New black carpet covered the Hushmat-coated floor and suede covered the dash and headliner, as well. The rear seats were not reinstalled because of the fairly-large audio plans for the truck. Creating a mound of power, prototype MTX Thunder Elite amplifiers were wired together using StreetWires connects and cables. Built into the rear headliner/back wall of the EXT, four MTX Thunder 8500 10-inch subs are considered "midbass" for this application and can easily out-thump most systems. Considered "midbass" because of the insane 22-inch (not a misprint) MTX Jackhammer subwoofers each weigh-in at an astonishing 369 pounds. Imagine having an entire marching band with only bass drums pounding inside your truck, and you get the point. These monsters of metal are housed in a custom aluminum enclosure between the midgate and totals 16 cubic feet of air space. Decibel levels of 185 have been reached with this unbelievable setup and, as stated in The Italian Job, is loud enough to blow a girl's clothes off. Sweet. Highs and mids can be heard from MTX TXC components and are sprinkled throughout the interior, including serious door panels that were installed over the Hushmat. StreetWires was considered the cable and connector of choice, along with StreetWires fuse holders and fused distribution blocks.
An Alpine Multimedia Manger and a Drivesoft computer work in conjunction with the MTX audio gear to provide audio entertainment for miles. | 
Five 300-amp Powermaster alternators power the eight 16-volt Powermaster batteries. |
Mounted on the inside of the EXT's tailgate, a control station can fine tune any and all of the audio functions from the Drivesoft computer. | |