12-inch, 4-ohm subwoofer with 1400 Watts peak (400 nominal) power handling * One-piece, seamless IMPP composite cone design for high power handling and accuracy * Dual-layer elastic polymer surround for added durability and lightness * Frequency response: 20 Hz to 220 Hz; Sensitivity: 94 dB * Available in single- or dual-voice-coil designs