This Package Includes the Following Items:
1 x Custom Chevy Silverado 07-13 Subwoofer Box Extended Cab Dual 12"
2 x Harmony Audio HA-F124 Flatline12" Sub 800W Peak
1 x Harmony Audio HA-A800.1 Class D Mono 1600W Sub Amp
1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel
Custom Chevy Silverado 07-13 Subwoofer Box Extended Cab Dual 12":
Features:Dual 12" 2007-2013 Chevy Extended Cab Sub Box
Mounting Depth: 6"
Air Space: 0.60 Cubic Feet Per Sub
Sealed Enclosure
Dimensions: Width 55-3/4" x Front Height 8-3/4" x Rear Height 5" x Depth 14-3/4"

High Quality Black Carpet
Enclosure installs under rear seat down firing
This box fits: 2007-2013 Chevy Silverado Extended Cab
2007-2013 GMC Sierra Extended Cab

Harmony Audio HA-F124 Flatline12" Sub 800W Peak:
Specifications:
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"
Single 4 Ohm

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
RCAs: Input and Full Pass Through Audio Output
Features:
Includes Remote Bass Control Knob with Power Indicator LED
Includes HA-EASY Speaker Wire to RCA Adapter to Simplify Installation