About this item Power Handling: Peak: 540 watts per pair / 270 watts each RMS: 180 watts per pair / 90 watts each Patented Plus One woofer-cone technology increased output with no extra power Three-ohm voice coils allow compensation for added resistance by thin factory speaker wiring External 12dB/octave crossover filters remove harmful frequencies 3 ohms impedance Frequency response: 67-21,000 Hz Top-mount depth: 2-1/16″ Sensitivity: 92dB