Lanzar OPTI1533D Optidrive 15-Inch High Power Dual Voice Subwoofer Oversized 2'' Foam Surround Dual 3 High Temperature BAEISV Voice Coil 125 Oz x 3 High Density Barium Ferrite Magnet Power Handling - 3000 Watts RMS /6000 Watts Peak Frequency Response - 40-350 Hz