Skip Navigation

MTX ThunderForms

1992-00 Chevrolet/GMC Suburban and GMC Yukon, 1995-99 Chevrolet Tahoe and 1992-94 Blazer, 1999-00 Cadillac Escalade, 1988-99 Chevrolet Trucks (Tan)

Item #: 236CS1TTN

In Stock

Be the first to write a review | Ask Questions

Your price: $449.99 Earn up to 450 Rewards points

Add to Cart

+ Add to wishlist + Email me alerts for this product

Ships Free From Manufacturer

View all associated offers

Does it fit my car?

Select your car

Find what fits your car

Can't find your exact car?

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 subwoofer.

This molded MTX ThunderForm comes loaded with a premium-quality 10" Terminator speaker and replaces the factory console in the following vehicles: 1992-00 Chevrolet Suburban, 1992-2000 GMC Yukon, 1995-00 Chevrolet Tahoe, 1992-94 full-size Chevrolet Blazer, 1999-00 Cadillac Escalade, and 1988-99 regular and extended cab Chevy trucks with bucket seats. It has built-in cup holders and a storage area that's perfect for palm-sized computers and other office tools. For the ultimate in Thundering bass, drive one with an MTX Thunder amp.

Product Highlights:

  • high-density polyethylene resin enclosure
  • single 10" Terminator subwoofer
  • frequency response 35-150 Hz
  • power range 50-225W RMS
  • warranty: 5 years (free repair or replacement for 2 years, prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

Vehicle-specific enclosures with subs? Say what?

Instead of the usual sub in a box, the manufacturer creates a molded enclosure that fits perfectly into a convenient spot in your specific vehicle, housing a high-quality sub. Some enclosures even include a built-in amp, for the ultimate in stealth bass. The advantages? You don't lose much space (if any), your sub is perfectly matched to its enclosure, and your enclosure has a factory look that won't tell potential thieves you have an awesome sound system. Doesn't get better than that.

MTX ThunderForms Reviews

Hands-on research

What's in the box?

Download owner's manual

  • Tan ThunderForm with pre-installed 10" Terminator subwoofer
  • Large metal bracket (length= 8-5/16")
  • Small metal bracket (length= 8-13/16")
  • 4 Self-tapping screws
  • Manual
  • "MTX Audio" sticker

Product Research



Vehicle-Specific Custom Enclosure: This MTX ThunderForm enclosure is specifically designed to replace the factory console in selected Chevrolet and GMC Suburbans, Yukons, Tahoes, full-size Blazers, as well as extended and regular cab full-size pickups with bucket seats. Please refer to the Crutchfield Vehicle 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. The color of the enclosure matches factory GM colors. Three cup holders (2 for the front and 1 for the rear) and a tray are molded into the top of the enclosure. It is a down-firing acoustic suspension (sealed) chamber with one pair of gold-plated 5-way binding posts.

Woofer: The ThunderForm enclosure is loaded with a 4-ohm, 10" MTX Terminator woofer.


Mounting Location: This enclosure is designed and molded to mount between the front bucket seats, replacing the factory console, with the woofer firing downward. 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. Mounting hardware is included to bolt the enclosure to the floor of the truck.

Tools Required: The manual provides this list of required tools.

  • Phillips Head Screwdriver
  • T50 Torx
  • 15mm Socket
  • 10mm Socket
  • Power Drill
  • Ratchet
  • 6" Ratchet Extension
  • 5/16" Wrench
  • Wire Crimper
  • Wire Cutters
  • 3/8" Drill Bit
Note: The manual provided is for both the amplified and non-amplified versions of this ThunderForm. Some of the tools may not be needed for this non-amplified ThunderForm.


5 Year Warranty Terms: This product carries a 5-Year Prorated Warranty with the following terms:

  • Years 1-2: Products found to be defective in materials or workmanship during the first two years will be, at Mitek's option, repaired or replaced by Mitek at no charge. The warranty period does not renew, but continues on from the original date of purchase.
  • Years 3-5: The purchase price of an item which becomes defective after the first two years and prior to the end of the warranty period will be prorated and credited toward the purchase of a new MTX product. The amount of proration is determined by dividing the original purchase price by the number of months in the warranty period (60), then multiplying the result by the number of months remaining in the warranty period.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Customer Q&A

Searches related to the MTX ThunderForms 1992-00 Chevrolet/GMC Suburban and GMC Yukon, 1995-99 Chevrolet Tahoe and 1992-94 Blazer, 1999-00 Cadillac Escalade, 1988-99 Chevrolet Trucks