This Package Includes the Following Items:
1 x Custom 12" 99-06 Chevy Silverado Extended Cab Sub Enclosure Box
1 x Kicker 43C124 12" Comp C12 Series Sub 150W RMS 4 Ohm SVC Car Subwoofer
1 x Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp
1 x Harmony Audio HA-AK4 Car 4 Gauge Amp - Nickel
Custom 12" 99-06 Chevy Silverado Extended Cab Sub Enclosure Box:
Single 12" Chevy 99-06 Extended Cab Sub Box
Air Space: 0.90 Cubic Feet
Mounting Depth: 6"
Sealed Enclosure
Dimensions: Width 23-1/2" x Front Height 9-1/2" x Rear Height 7" x Depth 13-1/2"

Constructed with High Quality MDF
High Quality Black Carpet
Enclosure installs on passenger side under rear bench seat down firing
This box fits:1999 - 2006 Chevy Silverado Extended Cab 1500, 2500, & 3500
1999 - 2006 GMC Sierra Extended Cab 1500, 2500, & 3500

Kicker 43C124 12" Comp C12 Series Sub 150W RMS 4 Ohm SVC Car Subwoofer:
Size: 12"
Impedance: 4 Ohms SVC
Power Watts: 300W Peak / 150W RMS
Sensitivity: 88.3 dB
Freq. Response: 27-500 Hz
Mounting Depth: 5-7/8"
Mounting Diameter: 11"

Harmony Audio HA-A400.1 Class D Mono 800W Sub Amp:
Specifications:
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
Turn On: DC Offset or 12V Remote
Features:
Includes Remote Bass Control Knob with Power Indicator LED
Includes HA-EASY Speaker Wire to RCA Adapter to Simplify Installation