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MTX ThunderForm Unloaded Enclosure

Holds two 10" subs — fits select 2000-up Ford SuperCab pickups (Charcoal)

Item #: 236250C20U

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Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden corners of your vehicle except great bass. ThunderForm enclosures fill the nooks and crannies of your vehicle with low tones that stand out, but their factory look blends right in.

MTX engineers evaluate the "sonic signatures" of top-selling vehicles so they can design ThunderForms as custom acoustic matches. Each ThunderForm fits and blends inconspicuously into your vehicle, so you get great bass without losing any space. They're made of high-density polyethylene resin to curb resonances — they deliver bass that's tight, hard-hitting, and way down low. The airtight enclosure provides the correct internal volume to yield optimum bass response.

This enclosure comes without speakers — you install two of your favorite 10" subwoofers. For best results, MTX strongly recommends using a speaker designed for an enclosure with a volume of 0.58 cubic feet. The enclosure mounts under the rear bench seat of select 2000-up Ford SuperCab pickups. The jack stays in the factory location, and tools are stored under the enclosure.

Please check with us before purchasing by using the vehicle selector on our site, or calling an Advisor at 1-888-955-6000 to verify fit information.

Product Highlights:

  • custom-fit charcoal subwoofer enclosure for two 10" subs
  • mounts under rear bench seat
  • fiberglass construction
  • volume: 1.17 cubic feet (0.58 per sub)
  • dimensions: 6-9/10"H x 55-1/8"W x 10-3/4"D
  • mounting depth: 5"
  • warranty: 5 years (free repair or replacement for 2 years, prorated replacement for years 3 through 5)
  • Our 60-day money-back guarantee

MTX ThunderForm Unloaded Enclosure Reviews


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What's in the box?

Download owner's manual

  • Custom-fit unloaded dual 10" subwoofer enclosure
  • Hardware
  • Installation instructions

Product Research

Features
Warranty

Features

Vehicle Compatibility: This Bass Slammer custom-fit enclosure is designed specifically to fit the 2000-2010 Ford F-250/350 Super Cab pickup truck.

Note: Please refer to the Crutchfield Vehicle Selector to confirm fit for your vehicle.

Mounting Location: Then enclosure mounts behind the rear seats, firing down, in Ford F-250/350 Super Cab trucks. The vehicle's jack stays in its factory location and tools relocate to under center of enclosure.

Enclosure Type: The sealed enclosure features fiberglass construction and fits two 10" woofers.

Tools For Installation:

  • Powered screwdriver
  • 6" Bit holder extension
  • #2 Phillips head bit

Warranty

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

1 question already asked

I forwarded your question to an Advisor and they responded with the following: You can use almost any 10" sub and amp combo that you want, just make sure the sub works with .58 cubic feet of air space and is no more than 5" deep. The box wasn't made with anything specific in mind so it just comes down to your budget and the level of performance you want. Due to lack of airflow I would not put an amp behind it as this could cause it to overheat. If you would like to discuss further you can contact an Advisor directly by phone (1-800-324-9695) or online chat. [ Krissy  Aug 24, 2015 ]  Staff