The FOX Acoustics GM-CC-210-V-07 is one of the most popular high-output under-seat subwoofer enclosures for 2007+ Chevy and GMC Crew Cab trucks. It’s designed for dual 10-inch subwoofers and focuses on delivering deep low bass, strong SPL, and a clean under-seat OEM-style fitment. Key Features Dual 10" vented enclosure Fits 2007+ GM Crew Cab trucks Fits: Silverado Sierra 1500 / 2500 / 3500 Crew Cab 2.1 ft³ internal air volume 35Hz tuning frequency Spray-coated black Line-X style finish Rear-firing vented design 1.75" floor clearance Heavy-duty MDF construction Designed for high-SPL output Fitment & Compatibility Crew Cab trucks ONLY Does NOT fit: Extended Cab Double Cab 2019+ trucks require removal of under-seat storage tray 2014–2018 trucks require included seat spacer kit Crew cabs must have flat rear floor design Subwoofer Specifications Subwoofer Size: Dual 10" Mounting Depth: 6.5" Max Magnet Diameter: 7" Sub Cutout: 9.2" Tune Frequency: 35Hz Airspace: 2.1 ft³ shared chamber
