Specifications: 1) RMS power: 500W 2) MAX power: 1000W 3) Impedance: 8 Ohm 4) Sensitivity (1W, 1M): 98dB 5) Frequency response: 30Hz - 200Hz 6) Components: 18" woofer with die-cast aluminum frame 7) Connections: 'Speakon' and 1/4" phone jacks 8) Enclosure: 18mm plywood cabinet with textured paint finish, steel grille, rubber feet, recessed bar handles 9) Recommended amplifier/peripheral: P-PA-2500 and FP-232 Inner packing: Dimensions: 634x 665 x 895mm N. W. (unpacked): 67kg Please refer to our website for more information and more models, thanks.