2007-2013 Chevy Silverado / GMC Sierra Extended Cab Dual 10" Sub Box + Harmony HA-F104 Subs, Kicker CX600.1 Amp & HA-AK8 Kit

Package contents: 1 x Custom Chevy Silverado 07-13 Subwoofer Box (Extended Cab) — designed for dual 10" down-firing installation under the rear seat; 2 x Harmony Audio HA-F104 Flatline Series 10" subwoofers (single 4 ohm); 1 x Kicker CX600.1 Car Audio Class D 1200W Subwoofer Amplifier; 1 x Harmony Audio HA-AK8 Car 8 Gauge 900 Watt Amp Kit - Nickel Finish. Custom Chevy Silverado 07-13 Subwoofer Box (Extended Cab) — features and dimensions: sealed enclosure built to fit 2007-2013 Chevy extended cabs with dual 10" drivers. Mounting depth: 6". Internal air space: 0.60 Cubic Feet per sub. Overall box dimensions: Width 55-3/4" x Front Height 8-3/4" x Rear Height 5" x Depth 14-3/4". Installs under the rear seat and fires downward. Harmony Audio HA-F104 10" Flatline Series subwoofer — key specs: Power handling Peak: 700 watts; RMS: 350 watts. Voice coil/load: Single 4 Ohm. Sensitivity: 87.1dB. Frequency response: 25Hz-1.5Hz. Mounting depth: 4 1/16". Mounting cutout diameter: 9 1/16". Kicker CX600.1 Class D subwoofer amplifier — specifications: RMS power rating: 4 ohms: 300 watts x 1 channel; 2 ohms: 600 watts x 1 channel. Maximum power output: 1200 watts x 1 channel. Frequency response: 25-200 Hz. Physical size: 7-3/16" W x 8-1/8" D x 2-3/8" H. This package provides a complete, vehicle-specific solution for adding dual 10" subwoofers to 2007-2013 Chevy/GMC extended cab trucks, including powered amplification and an 8-gauge installation kit in nickel finish.