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Alpine 12” Type R-Series Powered Ported Bass Package Includes one Alpine R-W12D4 12” subwoofer, R-A75M amplifier, and 2.25 ft³ optimized ported enclosure
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Alpine R-W12D4 - Subwoofer para Coche (12", RMS 750 W, Potencia de Pico 2250 W) Color Negro : Amazon.es: Electrónica
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Alpine mono amplifier with sub in Ported 12 inch subwoofer box to suit Holden| Street Sound & Vision
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Amazon.com: Alpine ALP19-R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 1500W Peak 12" Subwoofer : Electronics
![Alpine SWG-1244 12″ (30cm) Subwoofer (4Ohm) Features Peak Power: 800W RMS Power: 250W Frequency Response: 28Hz - 1kHz Sensitivity: 89.8dB/W (1m) Installation Diameter: 282mm Depth: 172mm | The Racers Edge Alpine SWG-1244 12″ (30cm) Subwoofer (4Ohm) Features Peak Power: 800W RMS Power: 250W Frequency Response: 28Hz - 1kHz Sensitivity: 89.8dB/W (1m) Installation Diameter: 282mm Depth: 172mm | The Racers Edge](https://www.theracersedge.co.za/images/thumbs/0012055_alpine-12-30cm-subwoofer-4ohm_625.png)