10" Subwoofer Dual 4 Ohm 900 Watts RMS Car Audio Sub Audiopipe TXX-BDC4-10, Audiopipe TXX-BDC4-10 is a 10 Dual 4 OHM High Performance Subwoofer By Brand Audiopipe - Walmart.com
JL Audio 10W6v3-D4 W6v3 Series 10" subwoofer with dual 4-ohm voice coils at Crutchfield
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: Skar Audio SDR-10 D4 10" 1200 Watt Max Power Dual 4 Ohm Car Subwoofer : Electronics
Goldwood Heavy Duty 10 in. Woofer 400-Watt 4 ohm Replacement Speaker GW-10PC-4 - The Home Depot