Product Name: Professional 15" Full-Range Speaker Box Model NO.: FT2153 Function: Stage Loudspeaker Structure: Two-Way Loudspeaker System Usage: Stage/DJ, Multi-Purpose Hall, Moving Performance, Clubs Speaker Material: MDF Amplification Type: Passive Frequency Response(-3db): 40Hz-20kHz Woofer: 2X15"(385mm)/2.5" Voice Coil Woofer Driver: 1X1"(25mm)/1.7" Voice Coil Tweeter Rated Power: 800W RMS, 3200W Peak Sensitivity: 100db 1 Watt/1 Meter Impedance: 4 Ohms Nominal Maximum Spl: 128db Continuous, 134db Peak Dispersion(-6db): 100