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MTX Amplified ThunderForms

Custom-fit powered subwoofer for 2000-06 Ford F-250 or F-350 Crew Cab (with rear bench seat) (Charcoal)

3 Reviews

Item #: 236F250ACF

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MTX Amplified ThunderForms

Overview

Our take on the MTX Amplified ThunderForms

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.

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.

Built-in 200-watt amp and 10" sub
This amplified ThunderForm comes equipped with a cool-running 200-watt amp that's custom designed to provide optimal power to its 10" FPR subwoofer without straining your vehicle's electrical system. MTX's Electronic Bass Control (EBC) lets you adjust the bass level from the driver's seat. A variety of inputs allow easy integration into your vehicle's sound system, and the included 20' power harness simplifies supplying power to the amp.

Made for your vehicle
This enclosure installs behind the rear seat of your 2000-06 Ford F-250 or F-350 Crew Cab — your truck must have the rear bench seat. Your jack stays in its factory location, but you'll have to move your tools to the passenger side of 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.

This product fits like a taylored glove and sounds amazing in my daughter truck! Great job on the design Folks.

rick t, simi valley,ca

What's in the Box:

  • Charcoal amplified Thunderform with a pre-installed 10" subwoofer and a 20-amp blade fuse
  • Wiring harness (20' length of 10-gauge power wire/3' length of 10-gauge ground lead/3' remote turn-on lead)
  • Fuse holder with attached wire loop
  • One 20-amp blade fuse
  • Crimp-on ring connector with large hole
  • Crimp-on ring connector with small hole
  • 1 Butt connector
  • Remote gain control with attached 18.5' cord (mini-plug jack on one end)
  • Remote gain knob and sticker
  • Two 10' speaker level adaptors (tinned speaker wire on one and a single RCA connection on other end)
  • Black metal "L" bracket
  • Two 2" self-tapping screws with 2 flat washers
  • Two 0.75" self-tapping screw with 2 small washers and one lock nut
  • 2 Black metal flat washers and 2 black metal lock washers
  • One 3.75" white zip tie
  • Installation Manual
  • Notice "Owners Manual Correction" sticker

Product Highlights:

  • custom-fit powered subwoofer
  • enclosure fits behind the rear bench seat
  • one 10" FPR subwoofer
  • built-in 200-watt RMS Class-D amplifier
  • high-density polyethylene enclosure
  • variable low-pass filter (50-150 Hz at 12 dB per octave)
  • preamp- and speaker-level inputs
  • 20' power harness included
  • warranty: 2 years
  • Our 60-day money-back guarantee
Reviews

MTX Amplified ThunderForms Reviews

Average Customer Review:

3 Reviews

MTX Amplified ThunderForms

Written by: Steve G from Big Bend, WI on November 18, 2015

Crutchfield Customer Review (What's this?)

Great sound! Relatively simple to install. Only complaint, same as another review, no way to mount the unit to the truck. The unit TRIES to supply means for mounting but mounting screw that is provided is too short. Even if it was long enough, not sure I like the idea of just one screw being forced into the steel wall of yhe cab. Again, great unit! Love it!

Pros:

Cons:

MTX Sub in F350 Quad Cab

Written by: AndrewV from Indiana on October 11, 2015

2004 Ford F-350
Crutchfield Customer Review (What's this?)

Installation process, sound, remote control knob all perfectly great. In-dash unit is an older Sony that i'd had sitting around and the install kit i purchased for that was great as well. Only complaint is that there really is not a way to secure the MTX unit to the rear wall of the cab of the truck. There's a hole and hardware in the unit but it really doesn't work SO i've "braced" the sub behind the back seat as a pretty effective Plan B. Overall quite happy except for this little issue.

Pros:

Cons:

MTX Amplified ThunderForms

Written by: rick t from simi valley,ca on January 15, 2014

Crutchfield Customer Review (What's this?)

This product fits like a taylored glove and sounds amazing in my daughter truck! Great job on the design Folks.

Pros:

Cons:

Details

Hands-on research

What's in the box?

Download the MTX Amplified ThunderForms manual

  • Charcoal amplified Thunderform with a pre-installed 10" subwoofer and a 20-amp blade fuse
  • Wiring harness (20' length of 10-gauge power wire/3' length of 10-gauge ground lead/3' remote turn-on lead)
  • Fuse holder with attached wire loop
  • One 20-amp blade fuse
  • Crimp-on ring connector with large hole
  • Crimp-on ring connector with small hole
  • 1 Butt connector
  • Remote gain control with attached 18.5' cord (mini-plug jack on one end)
  • Remote gain knob and sticker
  • Two 10' speaker level adaptors (tinned speaker wire on one and a single RCA connection on other end)
  • Black metal "L" bracket
  • Two 2" self-tapping screws with 2 flat washers
  • Two 0.75" self-tapping screw with 2 small washers and one lock nut
  • 2 Black metal flat washers and 2 black metal lock washers
  • One 3.75" white zip tie
  • Installation Manual
  • Notice "Owners Manual Correction" sticker

Product Research

Features

Molded Enclosure: The molded, high-density polyethylene resin enclosure resists flexing and dampens resonance.

MTX Audio Subwoofer: The ThunderForm houses a single proprietary 0.35 ohm woofer. The woofer features a long excursion voice coil and is designed to take full advantage of the efficiency of the enclosure's Class D amplifier giving you powerful, low frequency bass extension

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 subwoofer in the enclosure.

Protection Circuits: The amplifier features over voltage, over current and voice coil short protection to protect the amplifier and woofer.

Built-In Crossover: The crossover frequency can be varied from 50Hz to 150Hz for a seamless transition between the output of this unit and that of the other speakers in the vehicle.

Remote Bass Control: The ThunderForm comes supplied with a wired remote bass control that allows you to remotely adjust the bass from the driver's seat. This is a wired control which needs the cable to be run from the drivers seat to the location of the ThunderForm so it can be plugged in to the ThunderForm.

Smart-Engage Feature: When the speaker level inputs are used, the system will automatically turn on and off with the radio. This time-saving feature eliminates the need to remove the head unit when installing the ThunderForm.

Note: The auto turn-on feature does not operate when the preamp level inputs are used, unless the remote turn-on lead is connected.

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.

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