This Package Includes the Following Items:
1 x Sub Boxes Truck Single 12" Subwoofer Unloaded Enclosure Box
1 x Harmony Audio HA-R124 Car Stereo Rhythm Series 600 Watt Single 4 Ohm 12" Sub

Sub Boxes Truck Single 12" Subwoofer Unloaded Enclosure Box:
Features:Single 12" Truck Sub Box
Mounting Depth: 5-5/16"
Air Space: 0.80 Cubic Feet
Sealed Enclosure
Dimensions: Width 20" x Height 15" x Depth One 5" x Depth Two 7-1/2"

Designed to fit behind the seat most trucks
Constructed with High Quality MDF
High Quality Gray Carpet

Harmony Audio HA-R124 Car Stereo Rhythm Series 600 Watt Single 4 Ohm 12" Sub:
Specifications: 12" Rhythm Series Car Subwoofer
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"
Min Sealed Box Volume (Cubic Feet): 1.25
Max Sealed Box Volume (Cubic Feet): 3.52
Min Vented Box Volume (Cubic Feet): 1.65
Max Vented Box Volume (Cubic Feet): 2.3
Single 4 Ohm
Features:
Metallic Polypropylene Injection Molded Cone
Butyl Rubber Surround
Tinsel Leads Woven into Spider
1.5" Copper Voice Coil
Steel Basket
Ferrite Magnet
Kapton Former Material