Overview

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.

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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. 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.

This molded MTX ThunderForm comes loaded with two premium-quality 10" Terminator subwoofers modified especially for amplified Thunderforms, with a specially-designed amp that puts out 200 watts of power. It installs in your 2002-up Dodge Ram Quad Cab pickup under the rear seat. The enclosure is seamless and airtight, with the correct internal volume to yield optimum bass response from the subwoofers. Hardware is included.

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Product highlights:

custom-fit powered subwoofer
enclosure fits under rear seats
two Terminator 10" subwoofers
built-in 200-watt RMS amplifier
high-density polyethylene enclosure
variable low-pass filter (50-150 Hz at 12 dB per octave)
preamp- and speaker-level inputs
frequency response: 29-150 Hz
warranty: 2 years
MFR # DRQC20AC-TN

What's in the box:

MTX Amplified ThunderForms owner's manual

Amplified ThunderForm enclosure
Two 10" Terminator subwoofers (installed)
Power wiring harness (20' power lead/3' ground lead and 15' remote turn-on lead)
5' Speaker-level input harness
Electronic Bass Control (wired remote) with attached cable
In-line fuse holder
20-amp fuse
Ring terminal
Mounting hardware
Installation instructions

Featured review

I love these!!! they have great quality, sound, and fitment. I got them for my 2016 ram 1500 rebel and the box fits perfectly there barely any wiggle room for it to move around but once you anchor it down it doesn't move at all.

Braydon from Sellersburg, IN

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Customer Q&A

will this fit my 2017 Crew Cab which has the one single factory sub? can i remove the storage boxes on the driver side and make it fit?

I bought it for a 2011 1500 crew cab and i just put it in my 2017 2500 crew cab and it fit like a glove so i would think it would fit in yours.

Reviews (21)

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Details

Researched by Crutchfield's Pat M.

Product Research

Features

Vehicle-Specific Custom Enclosure: This MTX ThunderForm enclosure is specifically designed to fit select Dodge Ram Quad Cab and Crew Cab pickups. Please enter your vehicle information to confirm fit.

Enclosure: The enclosure is made of molded high-density polyethylene resin, which damps 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.

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 Subwoofers: This enclosure comes loaded with two 10" MTX Terminator subwoofers. The woofers have an unusual impedance, specifically designed for the built-in amp, and cannot be replaced with a standard MTX model.

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.

Gain Control: The rotary control is used to set the gain of the amplifier to match the input.

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

Powered Screwdriver
#2 Phillips Head Bit
Wire Cutters
15mm Socket
13mm Socket

Accessories

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Q&A

15 questions already asked

will this fit my 2017 Crew Cab which has the one single factory sub? can i remove the storage boxes on the driver side and make it fit?

lee Apr 27, 2023

3 answers

Yes, this will fit your 2017 Crew Cab. You don't have to remove the storage boxes as this unit fits directly underneath the back seats perfectly. The only item you will have to remove is the fold out floor of equipped with that.

paul Apr 28, 2023

I bought it for a 2011 1500 crew cab and i just put it in my 2017 2500 crew cab and it fit like a glove so i would think it would fit in yours.

william j Apr 27, 2023

It should fit all crew cab models, I'd imagine you can remove the factory sub and go from there and yes, you have to remove the 'lids' of the factory storage boxes to make it fit. If you don't have those built in underseat storage boxes then it will not fit.

liam j Apr 27, 2023

I have this same box set up for a few years now an Iâ??ve recently had to take the old subs out and amp and now I keep blowing subs I have the whole in the middle where the pre amp is covered with thick plastic to make sealed box. Iâ??ve used shallow mount subs Dvc and Iâ??ve just had bad luck. Iâ??d like to say. ngnotenough air flow and with this being a pre made box. Odd question but Im looking for a lil bit more professional help now?

kchodges54 Aug 23, 2022

1 answer

Your spot on, Kendel! It's always really hard to drop different subs and more powerful amps into the pre made slim truck enclosures. This particular setup is matched well for the subs, airspace, and power. The super small airspace enclosures are tricky to send more power to, and the fact that the box is so small internally could be a reason you have been having subwoofer issues. Not a lot of speakers will work well in this enclosure. We have options! Check out these Q customs Factory-fit enclosures below, you can use one on the drivers and one on the passengers side for a dual sub setup. This is super similar to what you have with the MTX with two differences, the Q customs is MDF with a plastic coating, and it has a slightly larger internal space. This could potentially work better with a custom sub/amp setup. If you are going for massive bass a custom box is the cure, but most folks won't want to remove their rear seats. This third link below is the JL Stealthbox, also a great sounding dual sub box for your truck! https://www.crutchfield.com/p_044CDQ110D/Q-Customs-Factory-fit-Subwoofer-Enclosures-Black-Drivers-Side.html https://www.crutchfield.com/p_044CDQC110/Q-Customs-Factory-fit-Subwoofer-Enclosures-Black-Passengers-Side.html https://www.crutchfield.com/p_13694610/JL-Audio-Stealthbox.html

bo Aug 24, 2022 (Staff)

With the built in amp, are these subs essentially plug and play?

ty Feb 09, 2022

4 answers

Yes there plug and play

chris Feb 12, 2022

Yes. The downside of it being built in is if you have issues they require you to send the entire box back to them. I had a power supply go bad on my first one. They covered costs under warranty but shipping the whole box back was a pain. The 2nd one has been in a year with no issues. Sounds great.

jeremy Feb 09, 2022

If you're using a factory head unit you will tap into the rear speaker wire on the drivers side. If using an aftermarket head unit with rca's it's plug and play. I am happy with it. Not a hard hitting set but good sound quality

david Feb 09, 2022

Yes to an extent

robert Feb 09, 2022

Are the MTX subs in this amplified set up dual voice coil?

michael Nov 11, 2021

1 answer

We do not have that specification on this powered subwoofer. I recommend contacting MTX's support to check if they can supply those details on the subs

jason Nov 16, 2021 (Staff)

Can you put in a different set of 10 inch subs in this enclosure. Referring to 2 10" Rockford fosgate's?

cruzzer Mar 21, 2021

1 answer

We have not researched the box in this package to know if other brand/model subwoofers will fit and work with the internal airspace. Sometimes, we have unloaded subwoofer boxes for the same pickup and we will have the specifications for those to help with finding matching subs. I recommend contacting an advisor by calling 1-800-324-9695 to check your pickup.

jason Apr 05, 2021 (Staff)

Will it fit on 2019 Nissan Frontier?

aida Mar 06, 2021

Hello, will this fit in my 2010 ram 2500 crew cab?

angelo Oct 14, 2020

1 answer

You can check to see if this will fit your vehicle by using our Outfit My Car tool: http://www.crutchfield.com/car/carselector.aspx For additional 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.

thomas Oct 29, 2020 (Staff)

Will this fit a 2016 Ram 2500 crew cab with rear foldout storage option?

jeffrey Aug 21, 2020

1 answer

This amplified subwoofer box will fit in your pickup!

jason Sep 07, 2020 (Staff)

Does this unit connect directly to the stock 8.4" screen? If not please list best list what I will need to make it work.

austin Apr 13, 2020

1 answer

Hi Austin, thank you for your question. We will need to gather a bit more information on your vehicle in order to check for possible T-Harness connections available to you. Please chat with us online or by phone at 1-800-324-9695. We will be happy to help.

jessica Apr 28, 2020 (Staff)

Do i have to put a after market head unit in or can i use the factory unit since dodge did something different with the wiring on a 2018 and i cant get the wiring harness to hook up a aftermarket unit?

patrick Mar 13, 2020

1 answer

You can connect it to either the factory wiring or an aftermarket head unit. It can take a speaker level input (for factory radio) or preamp input (for aftermarket).

casey Apr 16, 2020 (Staff)

I have. 2008 ram 1500 with under the seat storage that has the food out flaps would this still fit?

gbessett14 Aug 25, 2017

2 answers

No, you have to remove them, they will not fold down flush and can possibly damage the subs.

jeff Aug 25, 2017

Yes it will, I have a 2500 and it fits fine

shane Aug 25, 2017

I have the 2011 Ram crew cab with the factory alpine system and the 8 inch factory sub I want to remove the factory sub and install this set up what all do I need to do. I want to keep the factory head unit. What do I do for getting the signal to the amp for these new subs ?

doug Feb 13, 2017

1 answer

For additional 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 how everything fits and what you will need for an installation in your vehicle.

kenneth Feb 13, 2017 (Staff)

Does this product also include the speaker wire, power and ground wires?

mikail Dec 06, 2016

3 answers

Yes

steven Dec 07, 2016

Yes, it does! It also comes with connectors, fuses, and a few small zip ties.

criss Dec 07, 2016

Yes it did

blakley w Dec 07, 2016

If I buy this product and a new head unit will I also have to buy an amp with it?

james Jul 08, 2015

8 answers

No I have a aftermarket head unit and the subs come with an amp they sound awesome

steven Jul 09, 2015

No. The amplified model comes with a built in amplifier.

scott Jul 09, 2015

no, thunder forms are powered.... now u do want to by a deck that has power too, since u are not buying an amp.

rocky Jul 09, 2015

No. The sub enclosure has it's own built in amplifier.

ryan Jul 09, 2015

Yes. Your head unit should come with a subwoofer output on the back. I bought an Alpine 500 watt Mono amp and added it to my system in my Dodge. Best thing I ever did.

randall Jul 09, 2015

No the amp is already installed in the center of the box. Its molded into the box itself. All you would need to do is still run a power cable, ground wire and a remote wire along with RCA cable from the head unit to the amp in the box. Fairly easy setup and they sound great, especially after you break them in.

angela marie Jul 09, 2015

If it's the same one I have No. It has a built-in 200 watt amp. There's two listed on the web site. I paid $799, this one has the built-in amp. I believe it tells you under the Details tab. Hope this helps.

dennis Jul 09, 2015

NO, it has a built in amp, I have this and a touchscreen pioneer that sounds amazing

matthew Jul 09, 2015

Hi. I have a 2013 ram 1500 quad cab. I know it won't go to the factory radio. But if I put an aftermarket head unit in will this sub set up fit under the back seat. I have a single bench seat in the back that folds up. No split seats. Just wanted to know if it would fit?

corey Apr 03, 2014

1 answer

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.

kristina Apr 04, 2014 (Staff)

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