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Sierra - 2003 - Down-Firing - Subwoofer Boxes
Different enclosure types such as bass reflex, acoustic suspension, infinite baffle, horn loaded, tapped horn, transmission line and bandpass are available for subwoofers or subs. Many subwoofer boxes are constructed with medium-density fiberboard, oriented strand board (OSB), plywood, plastic or other dense materials.
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QPower BQGMC10DF Sealed Down-Firing Subwoofer Enclosure for 1999 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab Truck - ( Dark Grey Carpet )$109.99Out of stock- Designed to fit 1999 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab truck
- Sealed 0.95 cubic foot (Per Driver) enclosure for (2) - 10 inch subwoofers
- Subwoofer enclosure is finished in Dark Grey Carpet
- Enclosure requires the use of shallow mount 10 inch drivers for easy fitment
- Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
- Glued and internally braced for minimal resonance
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QPower BQGMC12DF Sealed Down-Firing Subwoofer Enclosure for 1999 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab Truck - ( Dark Grey Carpet )$109.99Out of stock- Designed to fit 1999 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab truck
- Sealed 0.95 cubic foot (Per Driver) enclosure for (2) - 12 inch subwoofers
- Subwoofer enclosure is finished in Dark Grey Carpet
- Enclosure requires the use of shallow mount 12 inch drivers for easy fitment
- Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
- Glued and internally braced for minimal resonance
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QPower BQGMC102001HD Sealed Down-Firing Subwoofer Enclosure for 2001 - 2007 GMC, Chevrolet Sierra, Silverado Crew Cab 1500HD / 2500HD / 3500HD Truck - ( Dark Grey Carpet )$110.99Out of stock- Designed to fit 2001 - 2007 GMC, Chevrolet Sierra, Silverado Crew Cab 1500HD / 2500HD / 3500HD truck
- Sealed 0.5 cubic foot (Per Driver) enclosure for (2) - 10 inch subwoofers
- Subwoofer enclosure is finished in Dark Grey Carpet
- Enclosure requires the use of shallow mount 10 inch drivers for easy fitment
- Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
- Glued and internally braced for minimal resonance
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QPower QBGMC10DF Sealed Down-Firing Subwoofer Enclosure for 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 Truck - ( Black Bed-Liner )$185.99Out of stock- Designed to fit 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 truck
- Sealed 0.9 cubic foot (Per Driver) enclosure for (2) - 10 inch subwoofers
- Subwoofer enclosure is finished in Black Bed-Liner
- Enclosure requires the use of shallow mount 10 inch drivers for easy fitment
- Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
- Glued and internally braced for minimal resonance
-
QPower QBGMC12DF Sealed Down-Firing Subwoofer Enclosure for 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 Truck - ( Black Bed-Liner )$193.99Out of stock- Designed to fit 1996 - 2006 GMC, Chevrolet Sierra, Silverado Extended Cab 1500 / 2500 / 3500 truck
- Sealed 0.9 cubic foot (Per Driver) enclosure for (2) - 12 inch subwoofers
- Subwoofer enclosure is finished in Black Bed-Liner
- Enclosure requires the use of shallow mount 12 inch drivers for easy fitment
- Constructed out of High-Grade 5/8" MDF (Medium Density Fiberboard)
- Glued and internally braced for minimal resonance
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