10" 750 Watts RMS 3" Voice Coil Dual 4-Ohm Riot Series Version 2 Subwoofer

B2 Audio 10" 750W RMS 3" Voice Coil Dual 2-Ohm Riot Subwoofer

B2 Audio 2" 4-Ohm Rampage RC2 Mini Subwoofer for 1:10 Scale RC Cars

B2 Audio RAMPAGE 6.5" 1000 Watt RMS Carbon Fiber Dual 1-Ohm Voice Coil Subwoofer

B2 Audio RAMPAGE 8 V3 8" Dual 2-Ohm 2" Voice Coil 1000W RMS Subwoofer OPEN BOX

B2 Audio RIOT Series V3 12" 1000 Watt RMS Dual 2-Ohm 3" Voice Coil Subwoofer

Nemesis Audio NA-6.5H v.2 6.5" 500W RMS Subwoofer DVC