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Description
MTX C1500EX-07A ThunderForm Amplified 10” 250W RMS 4Ω Custom Loaded Subwoofer Enclosure for 2007-2018 Chevrolet Silverado / GMC Sierra Extended Cab (Black)MTX Audio C1500EX 07A ThunderForm Amplified 10" Subwoofer Enclosure 2007 2018 Chevy GMC Extended Cab FITMENT NOTE: Fits 2007 2018 Chevrolet Silverado & GMC Sierra 1500 2500 3500 Extended Cab (Double Cab). Also fits 2019 Silverado "LD" and 2019 Sierra "Limited" (Legacy Body Styles). Does NOT fit 2007 "Classic" old body style or 2019 Up New Generation trucks. The MTX C1500EX 07A ThunderForm is a custom engineered bass solution designed specifically for
MTX Audio C1500EX-07A ThunderForm Amplified 10" Subwoofer Enclosure – 2007-2018 Chevy/GMC Extended CabFITMENT NOTE: Fits 2007-2018 Chevrolet Silverado & GMC Sierra 1500/2500/3500 Extended Cab (Double Cab). Also fits 2019 Silverado "LD" and 2019 Sierra "Limited" (Legacy Body Styles). Does NOT fit 2007 "Classic" old body style or 2019-Up New Generation trucks.
The MTX C1500EX-07A ThunderForm is a custom-engineered bass solution designed specifically for the unique cabin acoustics of Chevrolet Silverado and GMC Sierra Extended Cab (Double Cab) trucks. This stealthy enclosure mounts directly under the driver’s side rear seat, utilizing otherwise wasted space to deliver massive low-end performance without sacrificing legroom. As an "Amplified" model, it features a built-in high-efficiency Class D amplifier that is precision-tuned to the pre-loaded 10-inch Terminator series subwoofer. Wrapped in aviation-grade black carpet to match your factory interior, the C1500EX-07A provides a seamless, integrated look with the "Loud and Clear" output that has made MTX a legend in truck audio.
Key Features
- Vehicle Specific Fit: Custom-tailored for 2007-2018 (and 2019 LD/Limited) Chevy/GMC Extended (Double) Cab models
- Stealth Installation: Fits perfectly under the driver’s side rear seat, maintaining a factory-stock appearance and full seat functionality
- Integrated Amplification: Built-in high-efficiency Class D monoblock amplifier delivering 250 Watts RMS (500 Watts Peak)
- High-Output 10" Subwoofer: Pre-loaded with a hard-hitting Terminator series subwoofer featuring a lightweight polypropylene cone and durable rubber surround
- Plug-and-Play Integration: Includes both RCA (low-level) and speaker-level (high-level) inputs for easy connection to any factory or aftermarket radio
- Smart Engage Technology: Automatically powers on the system when a signal is detected from the factory speaker wires (eliminating the need for a remote turn-on wire)
- Precision Tuning: Features a variable low-pass crossover (50Hz–150Hz) and includes an External Bass Control (EBC) for front-seat volume adjustment
- Premium Construction: Built from high-density, non-resonant MDF and finished in aviation-grade black carpet for durability and a factory match
- Acoustic Performance: Sealed enclosure with 1.0 cubic foot of internal volume for deep, accurate, and impactful bass response
- Frequency Response: 39Hz – 150Hz
- Dimensions: 16.31" H x 20.75" W x 8" D
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.7 ★★★★★
Based on 21 reviews
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Product Reviews
★★★★★ 5
Great for creating a workspace
Color: Grey
I needed a room divider that could be easily folded for storing to put behind my chair during my work calls. This works perfectly! Was very easy to put together. Lightweight but sturdy enough that it won’t fall over.
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Reviewed in the United States on February 27, 2026
★★★★★ 2
Base part of it
Color: Black
Even though I kept this it’s very uncomfortable because of the way the base works . They are very long at the bottom and it’s hard to open and close
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Reviewed in the United States on March 15, 2026
★★★★★ 5
Great room separator
Color: Black
The panels are much longer than we expected! We only needed 3 of the 4 proivided. It's slightly flimsy, but holds together nicely. The screwdriver that came with did not fit the screws, but luckily we had a Phillips head. It's very lightweight. It is definitely a good value for the money.
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Reviewed in the United States on February 10, 2026
★★★★★ 1
Never got to try it because it was broken
Color: Black
Came with a broken piece and is taking forever to get a refund…there wasn’t an option for a replacement
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Reviewed in the United States on March 15, 2026
★★★★★ 3
Room divider
Color: Black, Color: Black
It was much simpler than anticipated. I don't think it's very sturdy and it lacks weight, but it's attractive.
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Reviewed in the United States on March 20, 2026