This Package Includes the Following Items:
1 x Compatible with Chevy Silverado or GMC Sierra 07-13 Ext Cab Truck Dual 12" Sub Box Enclosure Rhino Coated
2 x Harmony Audio HA-R124 Rhythm Series 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
Compatible with Chevy Silverado or GMC Sierra 07-13 Ext Cab Truck Dual 12" Sub Box Enclosure Rhino Coated:
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"
Enclosure installs under rear seat down firing
Application Guide: Compatible with Chevy:
Silverado 2007-2013 Extended Cab
Compatible with GMC:
Sierra 2007-2013 Extended Cab
Harmony Audio HA-R124 Rhythm Series 12" - Package Sub:
Power Handling: Peak: 600 watts ; RMS: 300 watts
Sensitivity: 88.2dB
Frequency Response: 27Hz-1.8kHz
Mounting Depth: 5 11/16"
Mounting Cutout Diameter: 11 1/8"
Single 4 Ohm
Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp:
Power Handling:
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
Includes Remote Bass Control Knob with Power Indicator LED
Includes HA-EASY Speaker Wire to RCA Adapter to Simplify Installation