Impedance: 4 Ohms Frequency Response: 52Hz ? 32.000Hz Sensitivity: 2,6W 90dB/1m RMS Power Range: 40-100 Watts Crossover Frequency: 2.500 Hz MB Quart PCE 213 Includes: 2 Midwoofers: PWE130 2 Tweeters w/Crossovers: PTE25