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Ships within 48 hours · Estimated delivery Sep 6 - Sep 11
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Description
DS18 SQBASS8 8” 800W Max Amplified “Active” Underseat Enclosed Car Subwoofer Box8 Amplified Under Seat Car Subwoofer 150 W RMS 800 W Peak (Built In Amplifier, 2 ) This powered under seat subwoofer delivers impactful low frequency output for vehicles with limited space. Featuring a built in Class D amplifier with 150 W RMS and 800 W peak power, it includes a wired bass remote for easy in cab adjustment. Designed to fit beneath most seats, this compact subwoofer offers adjustable low pass crossover, bass boost, phase control, and
8″ Amplified Under-Seat Car Subwoofer – 150 W RMS / 800 W Peak (Built-In Amplifier, 2 Ω)This powered under-seat subwoofer delivers impactful low-frequency output for vehicles with limited space. Featuring a built-in Class-D amplifier with 150 W RMS and 800 W peak power, it includes a wired bass remote for easy in-cab adjustment. Designed to fit beneath most seats, this compact subwoofer offers adjustable low-pass crossover, bass boost, phase control, and both high- and low-level inputs for flexible integration.
Key Features
- Power Handling (RMS): 150 W
- Power Handling (Peak): 800 W
- Built-in monoblock Class-D amplifier
- Impedance: 2 Ω
- Frequency Response: ~36 Hz – 300 Hz
- Sensitivity: ~79 dB
- Adjustable low-pass crossover (50–150 Hz) and bass boost (0–12 dB)
- Phase selector (0–180°)
- Auto signal sensing turn-on
- Includes wired bass level remote
- Compact under-seat enclosure design
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 23 reviews
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Product Reviews
★★★★★ 5
Good stuff !
Model: 36 SqFt(3.4 SqM), Model: 36 SqFt(3.4 SqM)
This is an excellent product. Easily moldable, cuttable with good scissors or razor knife, very sticky, works great.
This pack was enough to do all 4 doors on a crew max truck, and I went wild on the fronts. I used 9 peices on each rear door which was just enough, and the rest on the fronts. I doubled up layers and even used some on the back of the door panels. If you follow the instructions and dont go wild you might even have extra left over.
It works just like you would imagine. Without doing the entire cab there will still be road noise but this helped noise, better audio, no buzzing door panels, terrific improvement.
It is kind of heavy, so extra weight is added to truck, but that really isnt a bad thing. It is noticable but in a good way.
Get it. Use it.
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Reviewed in the United States on March 20, 2026
★★★★★ 4
Good product
Model: 36 SqFt(3.4 SqM)
Easy to roll out. Works great
Why did you pick this product vs others?:
Fair price for the amount of coverage, good quality
Works well:
Easy to install, rolls out great. Forms to contours well
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Reviewed in the United States on July 13, 2025
★★★★★ 5
Great product
Model: 36 SqFt(3.4 SqM)
I used this on the doors of a Toyota Tacoma, worked as it described. Reduced the road noise significantly.. Need to buy another box for the floor and roof of the truck..
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Reviewed in the United States on May 15, 2026
★★★★★ 5
Great product - Add foam product for complete solution
Model: 36 SqFt(3.4 SqM)
Used in two cars with speaker upgrades. Easy to install but get the roller for assured adhesion.removes "tinnyness" from large metal resonators. Use with foam absorptive material for a complete system.
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Reviewed in the United States on April 14, 2026
★★★★★ 5
Great Product for noise reduction in Auto Use.
Model: 36 SqFt(3.4 SqM)
I use this on many builds to dampen the metal echo in cars, vans, and trucks. Just one sheet in the center of a body panel is a huge difference maker. You can also cover the entire surface and get added insulation value. The noise is greatly depleted and it's easy to install with a roller tool. Looks Great when done. Good Product I will use again!
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Reviewed in the United States on December 29, 2025
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