The FOX Acoustics GM-CC-212-S-07 is a premium under-seat dual 12-inch sealed subwoofer enclosure engineered specifically for 2007+ GM crew cab trucks. Designed for Silverado and Sierra 1500/2500/3500 crew cab platforms, this enclosure focuses on strong sound quality, tight accurate bass response, and maximum under-seat space utilization while still fitting large modern 12-inch subwoofers. It’s one of FOX Acoustics’ most popular SQ-oriented truck enclosures for customers wanting deep clean bass without sacrificing rear-seat functionality. Main Features Designed for 2007+ Chevy/GMC crew cab trucks Fits Silverado and Sierra 1500/2500/3500 Dual 12-inch sealed enclosure Under-seat mounting design SQ-focused sealed alignment Heavy-duty MDF construction Spray-coated black bedliner finish OEM-style fitment Compatible with many shallow and moderate-depth subwoofers Designed for strong low-frequency accuracy Retains rear-seat usability Optional mounting brackets available separately Specs Specification Details Vehicle Fitment 2007+ GM Crew Cab Compatible Trucks Silverado / Sierra 1500, 2500, 3500 Enclosure Type Sealed Subwoofer Size Dual 12" Box Style Under-Seat Construction Material MDF Finish Black Spray Bedliner Intended Sound Profile Tight / Accurate SQ Bass Approx. Shipping Weight ~45–65 lbs Professional installation is recommended because: Large dual-12 systems require upgraded electrical support Seat clearance varies by subwoofer model Proper amplifier tuning matters heavily Some trucks may require storage-tray removal Sound deadening greatly improves low-frequency response The GM-CC-212-S-07 performs best with: OFC amplifier wiring DSP tuning Sound-deadened doors and rear cab wall Shallow or moderate-depth SQL subwoofers
