The Fox Acoustics GM-CC-212-S-07 is a premium under-seat sealed subwoofer enclosure designed specifically for 2007+ Chevrolet Silverado and GMC Sierra Crew Cab trucks. Built for dual 12-inch subwoofers, this enclosure is popular in high-end truck audio builds because it offers excellent fitment, durable construction, and strong musical bass response while still fitting under the rear seat.

Key Features

  • Fits 2007+ GM Crew Cab trucks
  • Compatible with 1500 / 2500 / 3500 models
  • Dual 12-inch sealed enclosure
  • Under-seat OEM-style fitment
  • Heavy-duty MDF construction
  • Black Line-X bedliner coating
  • 2.1 cubic feet internal air volume
  • 1.75" floor clearance
  • Rear seat spacer kit included for 2014–2018 trucks
  • Designed for deeper mounting subwoofers

Subwoofer Specifications

  • Woofer size: Dual 12"
  • Mounting depth: 6.5"
  • Maximum magnet diameter: 7"
  • Sub cutout: 11.15"
  • Enclosure type: Sealed
  • Air volume: 2.1 ft³ total

Vehicle Compatibility

  • Chevrolet Silverado Crew Cab (2007+)
  • GMC Sierra Crew Cab (2007+)
  • 1500 / 2500 / 3500 platforms
  • Crew Cab only
  • Does NOT fit Extended / Double Cab models

Performance Notes
This enclosure is best for:

  • Tight, punchy bass
  • SQL-style truck builds
  • Customers already owning quality 12s
  • Daily-driver systems wanting clean low-end response

Works Great With

    Complementary products