This Package Includes the Following Items:
1 x Harmony Audio HA-A800.1 Class D Mono 1600W Sub Amp
1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel
2 x Alpine SWT-10S4 Car Audio SWT Series Sub Single 4 Ohm 700W Shallow Subwoofer
1 x 2007-2013 Chevy Silverado Crew Cab Truck Custom Dual 10" Sub Subwoofer Enclosure Box
Harmony Audio HA-A800.1 Class D Mono 1600W Sub Amp:
Specifications:
Power Handling:
14.4V @ 1 Ohm
800 Watts RMS x 1
1600 Watts PEAK x 1
14.4V @ 2 Ohm
600 Watts RMS x 1
1200 Watts PEAK x 1
Frequency Response: 10Hz-180Hz
Features:
Includes Remote Bass Control Knob with Power Indicator LED
Includes HA-EASY Speaker Wire to RCA Adapter to Simplify Installation

Alpine SWT-10S4 Car Audio SWT Series Sub Single 4 Ohm 700W Shallow Subwoofer:
General Features:10" SWT Series Single 4-ohm Shallow Mount Truck Subwoofer
Power Handling:Peak: 1,000 watts
RMS: 350 watts

Recommended Power Range: 100W - 350W
Frequency Response: 30 - 200 Hz
Sensitivity: 84.8 dB

2007-2013 Chevy Silverado Crew Cab Truck Custom Dual 10" Sub Subwoofer Enclosure Box:
Features:Dual 10" 2007-2013 (New Body Style) Chevy Silverado Crew Cab TruckAir Space: 0.85 Cubic Feet per Sub
Mounting Depth: 6"
Sealed Enclosure

Subs fire downward, will only fit the Crew Cab
This box fits: 2007-2013 Silverado 1500 Crew Cab Truck
2007-2013 Silverado 2500 HD Crew Cab Truck
2007-2013 Silverado 3500 HD Crew Cab Truck