Features:

Alpine W12S4 12" 750 Watt Peak 250 Watt RMS 4-Ohm Car Audio Subwoofer
12" 4-ohm subwoofer
Polypropylene and mica cone with poly-foam surround
Stamped steel frame
Power handling: 50-250 watts RMS
Peak power: 750 watts
Sensitivity: 87.9 dB
Frequency response: 22-200 Hz
Top-mount depth: 5-5/16"
Sealed box volume: 1.09 cu. ft.
Ported box volume: 1.91 cu. ft.
Rockford Fosgate Prime R500X1D 500 Watt RMS Mono Block Class D Car Amplifier
12dB/octave Butterworth crossover
RCA pass-thru outputs
On-board Punch EQ with +18dB boost @ 45Hz.
High level inputs
Remote PLC (Punch Level Control)
0°/180° Phase Switch
Real time output and power supply thermal sensing
Cast aluminum heatsink
4 Gauge power/ground connectors
MOSFET power supply
Over current protection
Short circuit protection
Muted turn on
1 - 17' High Grade Twisted Pair of 100% Copper RCA Cable
17' - 4 Gauge Translucent Blue SuperFlex Power Cables
17' - 18 Gauge Blue Remote Cable
17' - 16 Gauge Clear Speaker Wire
3' - 4 Gauge Clear SuperFlex Ground Wire
Gold Plated AGU Heat Resistant Fuse Holder
60 Amp AGU Gold Plated Fuse
7' Split Tube Loom
Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, Spades, and Grommets

• Alpine W12S4 12" 750 Watt Peak 250 Watt RMS 4-Ohm Car Audio Subwoofer. 12" 4-ohm subwoofer. Polypropylene and mica cone with poly-foam surround. Stamped steel frame. Power handling: 50-250 watts RMS. Peak power: 750 watts. Sensitivity: 87.9 dB. Frequency response: 22-200 Hz. Top-mount depth: 5-5/16". Sealed box volume: 1.09 cu. ft.. Ported box volume: 1.91 cu. ft.. .  
• Rockford Fosgate Prime R500X1D 500 Watt RMS Mono Block Class D Car Amplifier. 12dB/octave Butterworth crossover. RCA pass-thru outputs. On-board Punch EQ with +18dB boost @ 45Hz.. High level inputs.
• Remote PLC (Punch Level Control). 0°/180° Phase Switch. Real time output and power supply thermal sensing. Cast aluminum heatsink. 4 Gauge power/ground connectors. MOSFET power supply. Over current protection. Short circuit protection. Muted turn on.  
• 1 - 17' High Grade Twisted Pair of 100% Copper RCA Cable. 17' - 4 Gauge Translucent Blue SuperFlex Power Cables. 17' - 18 Gauge Blue Remote Cable. 17' - 16 Gauge Clear Speaker Wire.
• 3' - 4 Gauge Clear SuperFlex Ground Wire. Gold Plated AGU Heat Resistant Fuse Holder. 60 Amp AGU Gold Plated Fuse. 7' Split Tube Loom. Accessories Included: Wire Ties, Ring Terminals, Butt Connectors, Spades, and Grommets.  

Alpine W12S4 12" 750 Watt Peak 250 Watt RMS 4-Ohm Car Audio Subwoofer. 12" 4-ohm subwoofer. Polypropylene and mica cone with poly-foam surround. Stamped steel frame. Power handling: 50-250 watts RMS. Peak power: 750 watts. Sensitivity: 87.9 dB. Frequency response: 22-200 Hz. Top-mount depth: 5-5/16". Sealed box volume: 1.09 cu. ft.. Ported box volume: 1.91 cu. ft.. .  Alpine