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.

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.

In an attempt to outdo themselves, Jason and Craig built a control station on top of the inside of the tailgate. Lower, the tailgate and the end user can control every aspect of audio perfection including precise system tuning, subwoofer capabilities, and listening options, thanks to the awesome Drivesoft computer. This cool setup is housed directly behind a grand total of eight 16-volt Powermaster batteries, not including one 12-volt Powermaster unit, which is used to start the behemoth. Supplying juice to this arsenal of voltage are five 300-amp Powermaster amplifiers, which are mounted to two brackets bolted to the 6.0L block. Keeping tabs on the charging and voltage system is a slick Powermaster billet control station that enables the MTX crew to select which alternators are used when powering the system. Now a work of audio art, the Cadillac needed some extra attention paid to its body.

J.P. Customs, of Monroe, Wisconsin, performed the installation of the Lexani body kit and then painted the EXT with House of Kolor Cranberry and black two-tone with a marbleized silver stripe separating both of the colors. An E&G Classics billet grille finished off the body mods and now the only thing missing for the earth-shattering Caddy was new rolling stock. Twenty-seven-inch Lexani Magnum wheels fill the wheelwells with Nitto 305/45/R27 tires wrapping the huge hoops. Stopping the extra-large rolling mass are 15-inch SSBC disc brakes with MTX logos machined into each caliper.

Built in six weeks, the Jackhammer demo truck proved to be worth every drop of blood, sweat, and tears at the '06 SEMA show, and drew crowds of spectators who lined up to hear the unnatural power of two 22-inch subs.

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