Description
Quad 4-Hole 8" Ported Subwoofer Enclosure Box for 2007-Current GMC/Chevy Crew Cab – Bedliner Finish
Take your truck's audio system to the absolute extreme with this custom-fit, quad 8-inch ported subwoofer enclosure, engineered specifically to fit perfectly under the rear seat of 2007 to current GMC Sierra and Chevy Silverado Crew Cab trucks. Designed for bass enthusiasts who refuse to compromise on output, this massive four-hole enclosure maximizes your available cabin space while delivering earth-shaking low end. Utilizing a highly efficient front-firing design and a precision-tuned slot port set at 35Hz, it ensures that your massive array of four 8-inch subwoofers delivers the absolute maximum punch and distortion-free volume possible from your truck's floorboard.
Built to withstand extreme acoustic pressure and the brutal physical demands of a high-output quad-subwoofer system, this enclosure is constructed from high-quality 5/8-inch Medium-Density Fiberboard (MDF) to eliminate power-robbing cabinet resonance. The exterior is completely coated in a heavy-duty, sprayed-on black bedliner finish, providing unmatched durability, moisture resistance, and a rugged aesthetic that seamlessly blends into your interior. Complete with premium spring-loaded push-pin terminals for a secure electrical connection, this box offers an incredible 11.25-inch mounting depth, easily accommodating heavy-duty, large-motor 8-inch subwoofers.
Key Features & Specifications
Take your truck's audio system to the absolute extreme with this custom-fit, quad 8-inch ported subwoofer enclosure, engineered specifically to fit perfectly under the rear seat of 2007 to current GMC Sierra and Chevy Silverado Crew Cab trucks. Designed for bass enthusiasts who refuse to compromise on output, this massive four-hole enclosure maximizes your available cabin space while delivering earth-shaking low end. Utilizing a highly efficient front-firing design and a precision-tuned slot port set at 35Hz, it ensures that your massive array of four 8-inch subwoofers delivers the absolute maximum punch and distortion-free volume possible from your truck's floorboard.
Built to withstand extreme acoustic pressure and the brutal physical demands of a high-output quad-subwoofer system, this enclosure is constructed from high-quality 5/8-inch Medium-Density Fiberboard (MDF) to eliminate power-robbing cabinet resonance. The exterior is completely coated in a heavy-duty, sprayed-on black bedliner finish, providing unmatched durability, moisture resistance, and a rugged aesthetic that seamlessly blends into your interior. Complete with premium spring-loaded push-pin terminals for a secure electrical connection, this box offers an incredible 11.25-inch mounting depth, easily accommodating heavy-duty, large-motor 8-inch subwoofers.
Key Features & Specifications
- Vehicle Fitment: Custom engineered to fit seamlessly under the rear seat of 2007-Current Chevy Silverado and GMC Sierra Crew Cab trucks
- Quad Subwoofer Fitment: Features four exact 8-inch cutouts to accommodate a massive quad 8" subwoofer array
- Enclosure Type: Ported / Vented design engineered for maximum SPL and deep, heavy bass output
- Tuning Frequency: Precision slot port tuned at 35 Hz for hard-hitting, distortion-free low end
- Air Space: 0.80 Cubic Feet of internal volume per subwoofer (3.20 cu. ft. total internal volume)
- Maximum Mounting Depth: 11.25 inches — offers massive clearance for heavy-duty, deep-motor subwoofers
- Premium Construction: Built from rigid 5/8-inch MDF (Medium-Density Fiberboard) to prevent rattling and structural flex under extreme pressure
- Heavy-Duty Finish: Fully coated in a rugged, sprayed-on black bedliner finish for extreme durability, anti-slip grip, and moisture protection
- Wiring Terminals: Equipped with high-quality spring-loaded push-pin terminals for a secure and reliable connection to your amplifier
- Firing Direction: Under-seat Front-Fire design maximizes acoustic transfer directly into the cabin
Shipping & Delivery
Free shipping applies to orders $50 and over shipped within the 48 Contiguous U.S. States. Most orders ship the same or next business day. Tracking is included and will be updated upon shipment.
Additional shipping fees are required for all other locations (including but not limited to): PO Boxes, APO/FPO address, AK, HI, PR, Guam, Canada, and other countries outside the USA
We will make every attempt to process and ship orders within 2 business days of your cleared payment. We will contact you, should there be a problem or delay with your order. Please allow proper delivery time for your package to arrive.
Orders via UPS Ground arrive within 2-6 business days. Smaller or lighter weight items typically ship via USPS First Class or USPS Priority Mail.