This Package Includes the Following Items:
1 x Ford F-250 F-350 Extended Super Cab Truck 2001-2014 Dual 10" Subwoofer Box Enclosure
2 x Harmony Audio HA-R104 Rhythm Series 500 Watt Single 4 Ohm 10" Sub
1 x Kicker CXA400.1 Class D Subwoofer Amplifier 800 Watt Sub Amp
1 x Harmony Audio HA-AK10 Car 10 Gauge 600 Watt Amp Kit

Ford F-250 F-350 Extended Super Cab Truck 2001-2014 Dual 10" Sub Box Enclosure:Features:
Ford 2001-2014 F-250 F-350 Extended Cab Dual 10" Subwoofer Box EnclosureAir Space: 0.95 Cubic Ft Per Sub
Mounting Depth: 4-3/4"
Sealed Enclosure
Dimensions: Width 50-3/4" x Height 6-3/4" x Depth 10-3/4"

Enclosure installs under the rear seat down firing
Jack handle has to be relocated however the jack stays

Harmony Audio HA-R104 Car Stereo Rhythm Series 500 Watt Single 4 Ohm 10" Sub:Specifications: 10" Rhythm Series Car Subwoofer
Power Handling: Peak: 500 watts
RMS: 250 watts

Sensitivity: 86.1dB
Frequency Response: 30Hz-1.5kHz
Mounting Depth: 5 5/16"
Mounting Cutout Diameter: 9 1/4"
Single 4 Ohm

Kicker CXA400.1 Car Audio CX Series Class D Subwoofer Amplifier 800 Watt Sub Amp:Specifications:RMS Power Rating: 4 ohms: 200 watts x 1 chan.
2 ohms: 400 watts x 1 chan.

Max power output: 800 watts x 1 chan.
Variable low-pass filter (50-200 Hz, 12 dB/octave)