Amazon.com: Massive Audio SUMMOXL104-10 Inch Car Audio Subwoofer, High Performance Subwoofer for Cars, Trucks, Jeeps - 10" Subwoofer 1500 Watt RMS, 3000w MAX Dual 4 Ohm, 3 Inch Voice Coil. Sold Individually : Electronics
Amazon.com: NVX NSW124v2 12" 700W Peak (350W RMS) Dual 4-Ohm N-Series Car Subwoofer (NSW124 Version 2) : Electronics
Power Acoustik 10" Powerful 600W RMS Shallow Car Subwoofer Loud Speaker, Black - Walmart.com
DS18 HOOL-X15.1DSPL HOOLIGAN 15" SPL Car Subwoofer 4000 Watts RMS 4" 1 – Droppin HZ Car Audio