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.

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 amplified ThunderForm houses a 10" Terminator sub and a cool-running 200-watt amp that's custom designed to provide optimal power without straining your vehicle's electrical system. This charcoal enclosure fits under the rear seat of your 2007-up Chevy Silverado Crew Cab. 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.

Highlights:

custom-fit powered subwoofer with 10" Terminator sub
charcoal enclosure fits under the rear seat
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
dimensions: 22"W x 8"H x 18-1/2"D
warranty: 1 year
Our 60-day money-back guarantee

Hands-on research from the Crutchfield Labs (what are the Labs?)

What’s in the box? | In-depth notes

Product Research

What's in the box?

Download owner's manual

Custom-fit pre-loaded amplified enclosure
Wiring harness (20' power lead/3' ground lead and 3' remote turn-on lead)
Speaker-level to RCA harness
External bass control
Mounting hardware
Installation Instructions

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 open the box, verify contents, 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.

Features

Vehicle Compatibility: This MTX ThunderForm custom-fit, amplified, loaded enclosure is specifically designed to fit select Chevrolet Crew Cab pickups.

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

Mounting Location: The ThunderForm enclosure mounts under the rear seat on the Driver's side (install hardware supplied).

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

10" Terminator Subwoofer: This enclosure comes loaded with a single 10" MTX Terminator woofer. The woofer has an unusual impedance, specifically designed with the 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 very efficient and designed specifically for use with the subwoofer in the enclosure.

Built-in Low-pass Filter: The low-pass filter frequency can be varied from 50 to 150 Hz for a seamless transition between the output of this unit and that of the other speakers in the vehicle.

External Bass Control: The external bass control allows you to adjust the bass level from anywhere in the vehicle.

Auto Turn-On Feature: When the 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 the preamp level inputs are used, unless the remote turn-on lead is connected.

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Crutchfield - North America's electronics authority since 1974

MTX Amplified ThunderForm

2007-up Chevy Silverado Crew Cab — black enclosure w/10" sub and 200W amp

Item# 23615C10TN offer details

By buying this product you'll earn up to 550 Rewards points.

Our take on the MTX Amplified ThunderForm

Vehicle-specific enclosures with subs? Say what?

Highlights:

Hands-on research from the Crutchfield Labs (what are the Labs?)

Product Research

Our Product Research Team

Features

Product Reviews

Learn more about Vehicle-specific Enclosures with Subs

Learn more about Vehicle-specific Enclosures with Subs

Subwoofer Shopping Guide

Subwoofer Installation Guide

Dual Voice Coil Subwoofers

Subwoofer Enclosures

Video: How to Choose a Subwoofer

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