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MTX Amplified ThunderForm

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

Item # 236FSCB10N

Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden...

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Crinkled french fries, discarded receipts, old gum wrappers — you probably have everything in the hidden...

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4 questions - 7 answers

Item # 236FSCB10N

About 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 of power. It installs under the rear seat of your 2009-up Ford F-150 SuperCab or 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.

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Product highlights:

  • custom-fit powered subwoofer
  • enclosure fits under the 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: 36-1/3"L x 7-1/4"H x 14-1/8"D
  • warranty: 2 years
  • Our 60-day money-back guarantee
  • MFR # F150EX09FB10A-TN
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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
  • Mounting hardware
  • Installation instructions

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MTX Amplified ThunderForm reviews

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MTX Amplified ThunderForm

Crutchfield customer from San Antonio, TX on 8/14/2016

2014 Ford F-150 XLT

Verified customer (What's this?)
Verified employee purchase (What's this?)

I needed a low end in my F150 after installing some infinity 6x8 kappas. This box fits perfectly in the rear passenger area. It makes my short drives to work SO MUCH BETTER! Thanks MTX and crutchfield!

Pros:

Cons:

Crutchfield response on

0 of 0 found this helpful

Just ok

55bravo from Lewisburg, wv on 6/22/2014

Verified customer (What's this?)
Verified employee purchase (What's this?)

I love the fit, want better sound. Overall ok.

Pros: Great fit, easy install

Cons: Sound is not great.

Crutchfield response on

2 of 2 found this helpful

Great sound! What an outstanding built-in amp!

JD3 from San Antonio, TX on 11/18/2013

Verified customer (What's this?)
Verified employee purchase (What's this?)

I have experienced the sound of numerous built-in sub-woofers. By far, MTX makes the best powered-subs in the industry. Outstanding amps for the MTX subs.

Pros: Great fit in my Ford F150 FX2. Superb sound!

Cons: None to mention.

Crutchfield response on

3 of 3 found this helpful

MTX Amplified ThunderForm Custom-fit powered subwoofer

scott from altoona iowa on 10/21/2013

Verified customer (What's this?)
Verified employee purchase (What's this?)

grate fit 2013 f-150 xlt with stock radio set up

Pros: work grate

Cons: wish they would send better install instruction

Crutchfield response on

4 of 4 found this helpful

Verified customer (What's this?)
Verified employee purchase (What's this?)

Pros:

Cons:

Crutchfield response

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More details on the MTX Amplified ThunderForm

Pat M.

Product Research

Features

Vehicle-Specific Custom Enclosure: This MTX ThunderForm enclosure is specifically designed to fit select Ford F-150 SuperCab 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 passenger'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.

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Customer Q&A

4 questions already asked

Q
Will this unit fit under the rear driver side seat of my 2015 super cab F-150?
[ Chad  May 11, 2015 ]
3 answers
A
I don't think so. It's made to fit on the passenger side.
[ JIM  May 25, 2015 ]
A
It fit perfectly under the rear seat on my 2012 extended cab F-150 XLT
[ SAM T  May 13, 2015 ]
A
Yes and sounds great
[ JAY  May 11, 2015 ]
Q
Can the amp on this setup connect to the sub out terminals on the rear of my jvc aftermarket head unit or does it have to hook up to the rear speakers?
[ mike  Mar 11, 2014 ]
2 answers
A
I ran 2 RCA cables directly to the rear of my aftermarket ken wood, works like a champ!
[ JOSH  Mar 12, 2014 ]
A
Don't know, I hooked it up to the rear speaker leads and works great.
[ JIM  Mar 12, 2014 ]
Q
My lariat has a preinstalled factory subwoofer under the rear passenger seat. Would this unit require removing it in order for this one to replace it?
[ Jason  Jan 30, 2014 ]
1 answer
A
For details on fit or installation please contact an Advisor by phone (1-800-324-9695) or online chat. They will be able to pull up your vehicle and give you the details on if this will fit and what you will need for an installation in your vehicle.
[ Krissy  Jan 30, 2014 ]  Staff
Q
i have a 2013 f150 super cab and i don't see any wires under my backseat. i have the regular stereo, not the sony edition. How would i power this amp and subwoofer? is it something i could tackle or be better off taking it to a car stereo shop?
[ Andrew  Dec 16, 2013 ]
1 answer
A
If you are mechanically inclined, you should be able to do it yourself. Power should come from the battery of fuse box. Speaker inputs can be found on either door harness boot, if speakers are on the doors. If this seems tough for you to handle, then I suggest going to a shop. Expect an hour of labor
[ WIMMER  Dec 17, 2013 ]

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