The ZR12.4D is a 12" car subwoofer from the DS18 ZR series. It handles 750 watts RMS and uses dual voice coils at 4 ohms per coil, so you can wire multiple subwoofers to the final impedance your amplifier is stable at. Peak power handling is 1500 watts. Mounting requires an 11.2" cutout diameter and 6.6" of mounting depth, so confirm your enclosure before installing. Pair it with a matching monoblock amplifier and a properly tuned enclosure to get the most low-frequency output. | Ds18 Audio | | ZR 12" Subwoofer, 750W RMS Dual 4-Ohm | Best Buy