This Package Includes the Following Items:
1 x CustomCar Audio Dual 15" Slot Ported Sub Box
2 x Harmony Audio HA-R154 Car Stereo Rhythm Series 900 Watt Single 4 Ohm 15" Sub

CustomCar Audio Dual 15" Slot Ported Sub Box:
Features:Dual 15" Vented Sub Box
Mounting Depth: 16"
Air Space: 3.60 Cubic Feet Per Sub
Vented Enclosure
Dimensions: Width 42-1/4" x Height 19" x Depth 22"

Vented design allows for maximum output
Constructed with High Quality MDF
High Quality Gray Carpet

Harmony Audio HA-R154 Car Stereo Rhythm Series 900 Watt Single 4 Ohm 15" Sub:
Specifications: 15" Rhythm Series Car Subwoofer
Power Handling: Peak: 900 watts
RMS: 450 watts

Sensitivity: 90.4dB
Frequency Response: 25Hz-1.2kHz
Mounting Depth: 7 11/16"
Mounting Cutout Diameter: 13 7/8"
Min Sealed Box Volume (Cubic Feet): 2.22
Max Sealed Box Volume (Cubic Feet): 5.15
Min Vented Box Volume (Cubic Feet): 2.89
Max Vented Box Volume (Cubic Feet): 4.19
Single 4 Ohm
Features:
Metallic Polypropylene Injection Molded Cone
Butyl Rubber Surround
Tinsel Leads Woven into Spider
2" Copper Voice Coil
Steel Basket
Ferrite Magnet
Kapton Former Material