The PLANET AUDIO AC12D 12" 1800W Dual 4-Ohm Voice Coil Car Audio Subwoofer can handle 1800 Watts of MAX power and 900 Watts of RMS power. Other features include a mounting depth of 5-3/8" and an impedance of 4-ohms. Thump your car audio system with this AC12D subwoofer! With a 2 Inch Voice coil and 88 dB efficiency, you are really getting an incredible deal on this subwoofer. Planet Audio subwoofers are meant to sound great, and be sure to pair this with a Planet Audio or Boss Audio amplifier to get a perfect match. QSBASS12-VENTEDThe Q POWER 12" Single Heavy Duty Vented Subwoofer Enclosure features solid 5/8" MDF construction, charcoal carpet covering, a dual vented design, and terminal cup connectors. Turn your ride into a sound machine with the help of the Q POWER 12" Single Heavy Duty Vented Subwoofer Enclosure!