Hertz MPK 165.3 220W Max 4-Ohm 6.5" Two Way Car Audio Speaker Component System MPK165.3 - Hertz 6.5" 110W RMS 2-Way Component Speakers System Power Handling: 220 Watts Max / 110W RMS Impedance: 4-Ohm Frequency response Hz: 40  22,5k Sensitivity: 92dB SPL