This Package Includes the Following Items:1 x Custom Dual 12" 99-06 Chevy Silverado Extended Cab Subwoofer Box2 x Harmony Audio HA-A122 Car Stereo Alloy Series 1000 Watt Dual 2 Ohm 12" SubCustom Dual 12" 99-06 Chevy Silverado Extended Cab Subwoofer Box:Dual 12" Chevy 99-06 Extended Cab Sub BoxAir Space: 0.95 Cubic FeetMounting Depth: 5-3/4"Sealed EnclosureDimensions: Width 51" x Front Height 9-3/4" x Rear Height 7-1/4" x Depth 13-1/2"Constructed with High Quality MDF(2) High Quality Binding Terminal Cup (Accepts Banana Terminal Plugs OR Bare Wire 'up to 10GA')High Quality Black CarpetEnclosure installs under rear seat downfiringThis box fits:1999 - 2006 Chevy Silverado Extended Cab 1500, 2500, & 35001999 - 2006 GMC Sierra Extended Cab 1500, 2500, & 3500Harmony Audio HA-A122 Car Stereo Alloy Series 1000 Watt Dual 2 Ohm 12" Sub:Specifications: 12" Alloy Series Car SubwooferPower Handling: Peak: 1000 wattsRMS: 500 wattsSensitivity: 87dBFrequency Response: 25Hz-500HzMounting Depth: 6"Mounting Cutout Diameter: 11 1/8"Min Sealed Box Volume (Cubic Feet): 1.65Max Sealed Box Volume (Cubic Feet): 3.72Min Vented Box Volume (Cubic Feet): 2.02Max Vented Box Volume (Cubic Feet): 2.72Dual 2 Ohm
