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Description
MTX C1500EX-07L ThunderForm 10” 200W RMS 4Ω Custom Loaded Subwoofer Enclosure for 2007-2018 Chevrolet Silverado / GMC Sierra Extended Cab (Black)MTX Audio C1500EX 07L ThunderForm Loaded 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 07L ThunderForm is a custom fit, vehicle specific bass solution designed for
MTX Audio C1500EX-07L ThunderForm Loaded 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-07L ThunderForm is a custom-fit, vehicle-specific bass solution designed for 2007–2018 Chevrolet Silverado and GMC Sierra Extended Cab (Double Cab) trucks. This "Loaded" enclosure allows you to add high-performance bass to your truck while maintaining a completely factory look. Engineered to fit perfectly under the driver’s side rear seat, the C1500EX-07L utilizes otherwise wasted space so you don't have to sacrifice legroom or cargo capacity. It comes pre-installed with a 10-inch Terminator series subwoofer that is optimized for the enclosure's sealed internal volume. Built from high-density MDF and wrapped in aviation-grade black carpet, this enclosure is the perfect choice for enthusiasts who want to provide their own external amplification for a custom-tuned audio experience.
Key Features
- Vehicle Specific Fit: Precision-engineered for 2007-2018 (and 2019 LD/Limited) Chevy/GMC Extended (Double) Cab models
- Stealth Integration: Mounts out of sight under the driver’s side rear seat with zero loss of passenger space or seat functionality
- Loaded with Terminator Performance: Pre-installed with a 10-inch Terminator series 4-Ohm subwoofer featuring a durable polypropylene cone and rubber surround
- Power Handling: Designed to handle 250 Watts RMS (500 Watts Peak)
- Rigid Construction: Manufactured from high-density 5/8" MDF to eliminate resonance and ensure deep, accurate bass reproduction
- Aviation-Grade Finish: Wrapped in high-quality black carpeting designed to match your truck’s interior and withstand heavy use
- Sealed Enclosure Design: Features 1.0 cubic foot of sealed air space, providing the ideal acoustic environment for tight, punchy low-end
- Simple Connectivity: Includes a single 4-Ohm terminal cup for a direct connection to any mono or bridged amplifier
- Complete Hardware Kit: Comes with all necessary mounting hardware for a secure and professional installation
- Frequency Response: 39Hz – 150Hz
- Sensitivity: 90.7dB
- 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
4.2 ★★★★★
Based on 16 reviews
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Product Reviews
★★★★★ 2
Not Happy - Faded
Size: Twin XL, Color: 08 - Dark Blue, Size: Twin XL, Color: 08 - Dark Blue
I really wanted to love this but ended up super disappointed in this cover sheet. It was a generous size & nice fabric
BUT it faded in the center of the sheet where my child slept on it. Here are pictures to show the side of the sheet against the faded area. I would not recommend it although I like that it's organic.
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Reviewed in the United States on September 15, 2025
★★★★★ 4
A little thin
Size: Twin, Color: 06 - Sand
Nice sheet, very soft but a little thin for my liking
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Reviewed in the United States on January 6, 2026
★★★★★ 5
Wonderful knit sheet
Size: Queen, Color: 01 - White
I ordered the white queen size fitted sheet. I've washed and dried this sheet (on low) and it is wearing well. Actually not wearing at all---it's as good as when it was brand new. The packaging is nicely done, the elastic holds, the material is smooth and comfortable, it's just plain a good thing. Our queen mattress isn't super high, maybe 12" and it fits fine with a little tucking at the bottom. For sure this sheet would fit a much higher mattress. The fact that I had to cinch the bottom a little bit does not take away from how lovely this sheet is. I would definitely buy again.
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Reviewed in the United States on April 3, 2024
★★★★★ 5
Finally we BOTH can sleep comfy!
Color: 08 - Black, Size: Queen
So for years my boyfriend has always liked “jersey sheets” or “tee shirt” sheets or sheets made of flannel. He says he doesn’t like the feeling of cold “silky” feeling sheets as he’s always cold. I’m opposite and am always hot, and anytime we stayed in a nice hotel I looked forward to being able to sleep on cooler, taught, soft sheets for a couple of nights. I was able to deal with our old sheets but the issue we both hated was after awhile any sheet we got would get pilling. We even splurged and got a $60 flannel sheet which did the same thing forcing me to shave off these little annoying fuzz balls that make it feels like there is thousands of crumbs on the sheets. I also would wash our bedding once a week because the Jersey sheets seemed to “grow” as we move around in bed making it so the sheet was not taught and super annoying to lay on. The day I would wash them they would be comfortable but ultimately by the end of the week they would be almost hanging off our mattress. I ordered these sheets on a whim and got them the same day and immediately just threw out the jersey sheet and put this on (I didn’t even wash it, I know it’s gross but I was desperate for a comfy nights sleep and they came around 8pm) when I put them on I realized how soft and comfortable they felt. I also liked how the pillow cases are larger than most pillow cases that I have had in the past. We’ve been using these sheets for about a week and I love how I don’t wake up with my pillow popping out of the case anymore. The sheets have loosed ever so slightly since a week of sleeping but still are really taught and comfortable. They are cooler than flannel or fabric sheets and are initially cold when you first lay on them but I wouldn’t consider them “cooling” but they keep me from feeing extremely hot. They are way better than I ever would have expected for the price. I look forward to laying on them at the end of each day, even my boyfriend laid in bed the day I got them and said “wow I didn’t think I would like sheets like this, these are so soft!” And fell asleep immediately. We ended up ordering a second set in grey and the color is pretty. I still have yet to wash them, I usually use 2 tide pods when washing the bedding but I might get some fabric softener (as I hear it helps with pilling) to prevent the possibility of having that happen to these sheets in the future. I am hoping they hold up well after the wash and longer use. If they start to pill after wash, I will come back and update my review. Until then, I would highly recommend these sheets for the quality and the price point that they are offered at. Honestly, at this point even if they pill months from now I probably wouldn’t even be upset as long as they stay the same price I would just buy another set as they are just that comfortable and soft.
UPDATE: So it has been about 3 months since I have purchase and used these sheets. They are still as soft as the day I first put them on. I’ve been washing them bi-weekly along with my comforter and pillowcases. I wash them with warm water using a combination of tide pods and added Downy fabric softener. They say to hang dry them in the description but I have been putting them in the dryer on medium and have been taking them out after around 20-25 minutes, they seem to dry extremely quickly. They have yet to have absolutely any pilling and also have not shrunk or stretched. Also I have a cat that is very active and also sleeps with me who enjoys kneading on my bed and I haven’t even noticed any signs of wear what so ever to the eye or to the feel. I highly recommend these sheets. I still have yet to even open the second set I purchased!
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Reviewed in the United States on January 10, 2024
★★★★★ 5
Happy With Our Purchase
Color: 07 - Charcoal, Size: King, Color: 07 - Charcoal, Size: King
When we opened the package the sheets were soft. We wash everything before we use it, so in these went. The sheets held nicely through the washing machine, the edges stayed sewn up and the sheets are still fluffy. The sheets fit nicely on our bed and have a nice cooling effect in this 80-degree weather. We think these sheets were a quality purchase that was affordable.
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Reviewed in the United States on June 6, 2026