LF Drivers: 4 x 10” Voice Coil: 2” Magnet Weight (each): 30 oz HF Drivers: Horn/Driver Voice Coil: 1” Magnet Weight (each): 8 oz RMS Power Handling: 500-Watts Frequency Response (-3dB): 60Hz-18kHz Usable Low Frequency (-10dB): 43Hz Nominal Impedance: 8-Ohms Sensitivity: 98dB Maximum SPL: 122dB Dimensions (W x H x D inches): 24 x 25 x 16 Weight: 91 Pounds