1999-2006 Chevy Silverado/GMC Sierra Ext Cab Dual 12" Rhino-Coated Sub Box + (2) Harmony HA-F124 12" 800W Subwoofers

Package contents: 1 x Custom dual 12" subwoofer enclosure for 1999-2006 Chevy/GMC Extended Cab trucks; 2 x Harmony Stereo HA-F124 Flatline Series 12" subwoofers (800W peak, single 4 Ohm). Custom Dual 12" Sub Box — Chevy 99-06 Extended Cab - Fits: 1999 - 2006 Chevy Silverado Extended Cab 1500, 2500, & 3500 and 1999 - 2006 GMC Sierra Extended Cab 1500, 2500, & 3500. - Configuration: Dual 12" down-firing enclosure designed to mount under the rear seat. - Air Space: 0.95 Cubic Feet. - Mounting Depth: 5-3/4". - Sealed enclosure external dimensions: Width 51" x Front Height 9-3/4" x Rear Height 7-1/4" x Depth 13-1/2". - Construction: Built from high quality MDF and finished with sprayed-on layers (same technology as spray-on bed liner) for durable, water-resistant protection. - Terminals: (2) High Quality Binding Terminal Cup (Accepts Banana Terminal Plugs OR Bare Wire 'up to 10GA'). Harmony Stereo HA-F124 Flatline Series 12" Subwoofer (Quantity: 2) Specifications: - Driver size: 12" Flatline Series car subwoofer - Power handling: Peak: 800 watts; RMS: 400 watts - Sensitivity: 87.3dB - Frequency response: 25Hz-1.2Hz - Mounting depth: 4 1/2" - Mounting cutout diameter: 11 1/8" - Recommended enclosure volumes: - Min sealed box volume (Cubic Feet): 0.55 - Max sealed box volume (Cubic Feet): 3 - Min vented box volume (Cubic Feet): 1.68 - Max vented box volume (Cubic Feet): 2.25 Single 4 Ohm Features: Polypropylene Injection Molded Cone; Aluminum Cone Cap; Butyl Rubber Surround; Tinsel Leads Woven into Spider; 2" Copper Voice Coil; Steel Basket; Ferrite Magnet; Kapton Former Material.