Alpine R-W12D4 12" Subwoofer with KTE-12G.2 12" Speaker Grill
Amazon.com: Alpine R-W12D4 Car Audio Type R Series Sub Dual 4 Ohm 2250W Peak 12" Subwoofer and HA-SWKD Dual Subwoofer Sub Box Install Kit : Electronics
Subwoofer de 30cm, 2 bobine de 4 ohmi, 750 W RMS
Alpine R-W12D4 | 12" R-Series Dual 4-ohm Car Subwoofer