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