PR-1528HE Impedance 4 ohms RMS Power Handling 400 watts Program Power Handling 800 watts Frequency Response (-3dB) 48Hz–18kHz Frequency Range (-6dB) 42Hz–20kHz Low Frequency Limit (-10dB) 36Hz Nominal Sensitivity (1W/1M) 96dB Maximum SPL 122dB Crossover Frequencies (Internal) 200Hz, 4kHz Dimensions (H x W x D) 27" x 24" x 24" Weight 105 Ibs