Y-DJ Replacement Midbass-Midrange Speaker 12" 400w Professional Raw Loudspeaker for Pro-Audio (Pair) Professional woofer speaker that can handle most power amplifiers. Perfectly suited for Pro-audio, line arrays, car doors & side panels 12 inch woofer with a 50 oz Magnet and a 2.5 inch Voice Coil 400 Watts Peak Power / 200 Watts RMS Power, 8 ohms, 52Hz to 3KHz Frequency Response, 95dB Sensitivity Pressed Steel Chassis, Paper Cone, Cloth Edge Overall Dimension is 12.25 inch Mounting Depth is 4.75 inch