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MTX Amplified ThunderForm

Custom-fit powered subwoofer — fits 2009-up Ford F-150 SuperCrew

11 Reviews | 2 questions - 7 answers

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Item # 236FSCW10N

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Overview

Our take on the MTX Amplified ThunderForm

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. The high-density polyethylene resin enclosure curbs unwanted resonances from your sub, so you'll hear bass that's tight, hard-hitting, and way down low.

This molded MTX ThunderForm comes loaded with a premium-quality 10" Terminator subwoofer and a specially-designed amp that puts out 200 watts RMS. It installs under the rear seat of your 2009-up Ford F-150 SuperCrew with no loss of leg room. MTX's Electronic Bass Control (EBC) lets you adjust the bass level from the driver's seat. Hardware and harness are included.

I was very unsure on what to expect, as most custom boxes tend to look homemade. I'm glad it blew my expectations away. This is a solid performer with plenty of punch. I have yet to try it for an extended period, but I'm sure it will do fine. Great fit, great price, and great sound! A+ MTX

Mark, Missouri City, TX

What's in the Box:

  • Amplified ThunderForm enclosure loaded with two 10" Terminator subwoofers
  • 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
  • Mounting hardware
  • Installation instructions

Product Highlights:

  • custom-fit powered subwoofer
  • enclosure fits under rear seat
  • one 10" Terminator 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)
  • Electronic Bass Control
  • preamp- and speaker-level inputs
  • 20' power harness included
  • dimensions: 28-7/8"W x 7-7/8"H x 14-1/4"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
Reviews

MTX Amplified ThunderForm Reviews

Average Customer Review(s):

(11 Reviews)
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Details

Hands-on research

Product Research

Features

Vehicle-Specific Custom Enclosure: This MTX ThunderForm enclosure is specifically designed to fit select 2009-2011 Ford F-150 SuperCrew models. 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 is designed to mount under the rear seat on the driver's side. Note: The provided dimensions are taken at the widest points of the enclosure. Keep in mind that this enclosure is 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 standard MTX models.

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.

Controls:

  • 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.

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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Q & A

Customer Q&A

2 questions already asked

You will want to contact an Advisor by phone (1-800-324-9695) or online chat to discuss compatibility with your factory system. They will be able to pull up your vehicle and see if this will integrate. If it does not, then they will also be able to discuss other options with you. [ Kenny  Aug 31, 2016 ]  Staff
Thanks for the insight [ Michael  Jun 17, 2014 ]
It would entail some form of alteration. I had mine installed by a professional, as I am not patient enough with much of anything. I would venture to say the the factory wires would, at the very least, have to be spliced. You are essentially hooking up an amplifier without running the powered lines back into the factory speakers. [ MICHAEL  Jun 16, 2014 ]
No. But you do have to take off your dashboard to install it properly behind the deck. [ ASHLEY  Jun 16, 2014 ]
This sub only has rca inputs but comes with a speaker wire to rca harness if I remember correctly. If you are replacing a factory sub with an amp, remember to bypass the old amp. [ RICHARD  Jun 15, 2014 ]
There is a wiring adapter to connect to factory head unit. It costs about $15. I wanted to keep the stock look. Works great [ JACOB  Jun 15, 2014 ]
I jumped it off the factory sub. (sony) under rear seat. [ MICHAEL  Jun 15, 2014 ]
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