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Ships within 48 hours · Estimated delivery Jul 20 - Jul 25
For Your Every Summer RSVP, with Code: SUMMER15
Description
Quad 8" Ported Underseat Frontfiring MDF Subwoofer Enclosure (w/ Durable Bed Liner Finish) for 2007+ GMC/Chevy Crew Cab TrucksQuad 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
Quad 4-Hole 8" Ported Subwoofer Enclosure Box for 2007-Current GMC/Chevy Crew Cab – Bedliner FinishTake 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 Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy