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MTX Amplified ThunderForms
1993-98 Jeep Grand Cherokee
Our take on the MTX Amplified ThunderFormsby Crutchfield's Jo Greene
Crinkled french fries, discarded receipts, old gum wrappers you probably have everything in the hidden corners of your vehicle except great bass. But with custom ThunderForm enclosures, you can fill the nooks and crannies of your car, truck, or SUV with low tones that stand out.
MTX engineers evaluate the "sonic signatures" of top-selling vehicles so they can design ThunderForms as custom acoustic matches. With "rotational molding," MTX ensures that each ThunderForm fits and blends inconspicuously into your vehicle. They're made of high-density polyethylene resin to curb resonances and deliver bass that's tight, hard-hitting, and way down low. The enclosure is seamless and airtight, with the correct internal volume to yield optimum bass response from the subwoofers.
This molded MTX ThunderForm comes loaded with one premium-quality 10" Terminator subwoofer, powered by a specially-designed 200-watt mono amp. It mounts behind the spare tire on driver's side of the 1993-98 Jeep Grand Cherokee. The enclosure is installed using spare tire storage gear, so there are no holes to drill. No usable storage space is lost. Hardware is included.
Installation Note: This enclosure will not mount behind the optional aluminum spare tire sometimes found in 1996-1997 models.
- high-density polyethylene enclosure
- one Terminator 10" subwoofer
- built-in 200-watt RMS amplifier
- variable low-pass filter (50-150 Hz at 12 dB per octave)
- frequency response 20-165 Hz
- warranty: 2 years
- Our 60-day money-back guarantee
What's in the Box:
- Amplified ThunderForm enclosure loaded with one 10" Terminator subwoofer
- Two 20 amp fuses (1 in-line/1 installed in the ThunderForm)
- Wiring harness (20' power lead/3' ground lead and 3' remote turn-on lead)
- Speaker-level to RCA harness
- Electronic Bass Control (wired remote) with attached cable
- Installation instructions
Vehicle-Specific Custom Enclosure: This MTX ThunderForm enclosure is specifically designed to fit select 1993-1998 Jeep Grand Cherokees (it's not compatible when the spare tire is mounted on the optional aluminum wheel). Please refer to the Crutchfield Car Selector to confirm fit for your vehicle.
Enclosure: The ThunderForm enclosure is made of molded high-density polyethylene resin, which dampens resonance and is rigid enough to resist flexing. It is an acoustic suspension (sealed) chamber.
Mounting Location: This enclosure mounts between the spare tire and the back seat; it's held in place by the same lug holding the spare tire. Because the enclosure uses all the space between the spare tire and back seat, it's only compatible with the basic spare tire/wheel combination. It is not compatible when the spare tire is mounted on the optional aluminum wheel, and likely will not fit if the spare tire is mounted on an aftermarket wheel.
Note: The provided dimensions are taken at the widest points of the enclosure. Keep in mind that these enclosures are custom made to fit in this particular vehicle, so the enclosure will fit properly in only one specific location.
10" Terminator Subwoofer: This enclosure comes loaded with one 10" MTX Terminator subwoofer. The woofer has an unusual impedance, specifically designed for the built-in amp, and cannot be replaced with a standard MTX model.
Class D Amplifier: The enclosure contains a built-in 200-watt Class D (digital) amplifier that allows RCA or speaker-level input. The amplifier is highly efficient and designed specifically for use with the subwoofers in the enclosure.
Electronic Bass Control (EBC): The EBC is a wired remote and allows you to adjust the bass level from anywhere in the vehicle. Installing the EBC is optional.
Low-pass Crossover: The low-pass crossover point is adjustable from 50 to 150 Hz for a seamless transition between the output of this unit and that of the other speakers in the vehicle.
- Gain Control: rotary control; set the gain of the amplifier is match the input
- Crossover Control: rotary control; adjust the crossover from 50 to 150 Hz
Auto Turn-On Feature: When speaker level inputs are used, the system will automatically turn on and off with the radio.
Note: The auto turn-on feature does not operate when preamp level inputs are used, connecting the remote turn-on lead is required.
Tools Required: The manual provides this list of required tools:
- Phillips Head Screwdriver
- 7/16" Nut Driver
- Wire Cutters
- Terminal Crimpers
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1 question already asked
This will only work with a stock size spare on the non-aluminum rim. It will not work with your larger tire. Feel free to call an advisor on 1-800-324-9695 for other recommendations!My Bio: http://www.crutchfield.com/Support/Bio.aspx?bio=101 [ Paul Jun 13, 2016 ] Staff