About the MTX F-150C-09L ThunderForm
Massive MTX bass
Massive MTX bass
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.
Designed to rock your ride
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 MDF enclosure with its aviation-grade carpet covering curbs unwanted resonances from your sub, so you'll hear bass that's tight, hard-hitting, and way down low.
Don't lose any space
This rugged MTX ThunderForm comes loaded with a premium-quality 10" Terminator subwoofer, and mounts under the rear seat of your Ford Crew Cab. The enclosure is seamless and airtight, with the correct internal volume to yield optimum bass response from the subwoofer.
Product highlights:
- custom-fit subwoofer
- enclosure fits under rear seat
- special-design 10" Terminator subwoofer
- rugged MDF enclosure with aviation-grade carpet covering
- handles up to 250 watts RMS
- impedance: 4 ohms
- frequency response: 39-150 Hz
- sensitivity: 89 dB
- dimensions: 28-3/4"L x 7-7/8"H x 14-1/4"D
- warranty: 2 years
- Our 60-day money-back guarantee
- MFR # F-150C-09L
What's in the box:
- ThunderForm enclosure loaded with a single 10" Terminator subwoofer
- Wired remote
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More details on the MTX F-150C-09L ThunderForm

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Features
Vehicle Compatibility: This ThunderForm custom-fit, pre-loaded enclosure is designed specifically to fit the 2009-2015 Ford F-150 Super Crew Cab pickup truck.
Note: Please refer to the Crutchfield Vehicle Selector to confirm fit for your vehicle.
Mounting Location: Then enclosure mounts under the rear bench seat without taking up any usable interior space.
Enclosure: The Thunderform enclosure is made from durable MDF (Medium Density Fiberboard), that resists flexing and dampens resonance, and covered in aviation grade carpet.
Single 10" Terminator Subwoofer: The MTX enclosure comes loaded with single 10" MTX Terminator series 4 ohm subwoofer. The subwoofer is capable of handling up to 250 watts RMS and has a frequency response of 39Hz-150Hz.
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