Amazon.com: Hifonics Alpha HAW12D4 –12 Inch Subwoofer, Dvc Car Audio, 1200 Watt, Dual 4 Ohm, 2.5 Inch Voice Coils with A Woven Glass Cone, Light Weight Sub : Electronics
Amazon.com: Gravity G5-12D4 12 Inch 3000 Watt Car Audio Subwoofer, Audiobank 4 Gauge 2300W Amplifier Installation Kit and Hifonics Zeus ZG-1800.1D 1800W Car Audio Amplifier Bundle : Electronics