SoundSkins Global Dual 12” Sealed Down Fire Subwoofer Box is designed for 2007-2013 Chevy Silverado and GMC Sierra Crew Cab trucks, giving your audio system strong, clean bass in a vehicle-specific enclosure. This 07-13 Silverado crew cab 12" sub box is built for dual 12-inch subwoofers and uses a sealed down-fire design for controlled low-end response while keeping the install clean inside the cab.
Made in the USA from high-grade full 3/4” MDF, this enclosure is built for strength, durability, and dependable sound quality. Each box is coated with a tough bed liner polymer spray finish to help protect against daily wear, scuffs, and long-term use, making it a strong choice for truck owners who want a reliable 12 inch subwoofer box for Chevy Silverado Crew Cab or GMC Sierra Crew Cab builds.
Product Features
- Designed for 2007-2013 Chevy Silverado and GMC Sierra Crew Cab models
- Fits 1500, 2500, and 3500 Crew Cab trucks
- Dual 12-inch sealed down-fire enclosure design
- Built from high-grade full 3/4” MDF
- Durable bed liner polymer spray finish
- USA-made construction
- Designed for clean fitment under the rear seat area
- Helps deliver tight, accurate, and controlled bass response
- Available in standard, JL TW3, and square Kicker-specific options
- Strong construction helps reduce unwanted enclosure flex
- Optional SMD TCR-1 speaker terminal cup upgrade available
Fitment & Configuration Options
| Model |
Fitment / Style |
Cutout Diameter |
| SSK-P212SG3C |
Standard dual 12” configuration |
11.125” |
| SSK-P212SG3CJ |
JL TW3-specific option |
11.625” |
| SSK-P212SG3CK |
Square Kicker-specific option |
11.125” |
Product Specifications
| Specification |
Details |
| Product Name |
SoundSkins Global GM Crew Cab Dual 12” Sealed Down Fire Subwoofer Box |
| Vehicle Fitment |
2007-2013 Chevy Silverado / GMC Sierra Crew Cab |
| Truck Compatibility |
1500, 2500, and 3500 Crew Cab models |
| Enclosure Type |
Sealed down fire |
| Subwoofer Fitment |
Dual 12” subwoofers |
| Width |
50.5” |
| Front Height |
8.75” |
| Rear Height |
5.25” |
| Height |
8.75” |
| Bottom Depth |
14” |
| Top Depth |
14” |
| Depth |
14” |
| Mounting Depth |
6” |
| Weight |
38 lbs |
| Air Space |
0.9 cubic feet |
| Material |
Full 3/4” MDF |
| Finish |
Bed liner polymer spray |
| Construction |
USA-made |
Best Uses
This 2007 Chevy Silverado subwoofer box is ideal for truck owners who want stronger bass without using a bulky enclosure that takes over cabin space. The sealed down-fire design helps keep the bass tight and controlled while protecting the subwoofers from direct contact inside the cab.
It is a strong option for daily driving systems, clean under-seat installs, and truck audio builds where fitment, durability, and sound quality all matter. Whether you need a sub box for 2007 Silverado Crew Cab, a 2007 Silverado subwoofer box, or a dual 12 setup for a 2007-2013 Sierra Crew Cab, this SoundSkins enclosure gives your system a solid foundation.
Optional SMD TCR-1 Speaker Terminal Cup Upgrade
| Specification |
Details |
| Upgrade Option |
Steve Meade Designs SMD TCR-1 Speaker Terminal Cup |
| Power Support |
Up to 2000 watts |
| Standard Comparison |
Higher capacity than standard 500-watt terminal cups |
| Terminal Type |
5/16” bolt terminal |
| Cutout Diameter |
2.75” |
| Flange Diameter |
3.75” |
| Hardware |
Stainless steel |
| Build |
Lightweight, high-strength construction |
| Main Benefits |
Secure connection, leak resistance, durability, rust and corrosion resistance |
