This Package Includes the Following Items:
1 x 2007-2013 Chevy Silverado 1500 Extended Cab Truck Single 12" Subwoofer Box Sub Enclosure
1 x Harmony Audio HA-R124 12" - Package Sub
1 x Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp
1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel
2007-2013 Chevy Silverado 1500 Extended Cab Truck Single 12" Subwoofer Box Sub Enclosure:
Features:
2007-2013 Chevy Silverado 1500 Extended Cab Truck Single 12" Subwoofer Box Sub EnclosureMounting Depth: 5-3/4"
Air Space: 0.65 Cubic Feet
Sealed Enclosure

Fits under rear seat on Driver side only
Model trucks with low transmission hump may require spacers to hold the box up
Will fit full bench and 60/40 bench seat trucks

Harmony Audio HA-R124 12" - Package Sub:
Specifications:
Peak: 600 watts
RMS: 300 watts
Frequency Response: 27Hz-1.8kHz

Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp:
Specifications:
14.4V @ 1 Ohm
400 Watts RMS x 1
800 Watts PEAK x 1
14.4V @ 2 Ohm
300 Watts RMS x 1
600 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