Y-DJ Replacement Bass-Midrange Speaker 15" 600w Professional Raw Loudspeaker for Pro-Audio (Pair) Professional woofer speaker that can handle most power amplifiers. Perfectly suited for Pro-audio & line arrays 15 inch woofer with a 75 oz Magnet and a 3 inch Voice Coil 600 Watts Peak Power / 300 Watts RMS Power, 8 ohms, 45Hz to 3KHz Frequency Response, 96dB Sensitivity Pressed Steel Chassis, Paper Cone, Cloth Edge Overall Dimension is 15.25 inch Mounting Depth is 6 inch