The ZR6.2D 6-1/2” Elite-Z dual voice coil subwoofer from DS18 combines high power handling with incredible displacement for excellent output capability. With dual 2-ohm voice coils, this driver gives you multiple wiring option to get the most out of any amplifier. All ZR series subwoofers feature a large foam surround, non-pressed paper cone, extensive venting, and powerful ferrite magnets to deliver clean bass with reliable performance.