Powerbass XL-1044 10 in. Single 4 Ohm Subwoofer 350W RMS & 700W Maximum - Walmart.com
Amazon.com: Audiopipe APSP-1050 10 Inch 700 Watt MAX, 350 Watts RMS, and 8 Ohm Dynamic Mid Range Car Audio Loudspeaker with 2.5 Inch Kapton Voice Coil, Black : Electronics
ADJ Imperio Sub210 Dual 10-inch woofers with 700 watts RMS class D power amplifier · AV Gear