Seismic Audio - 15" Raw Speaker Woofer Replacement PRO AUDIO  PA/DJ Model #: Seismic Audio - Quake 15 Type: 15" Woofer/Speaker. Power RMS: 200 Watts. Power Peak: 400 Watts Frequency Response: 50-5K Hz. Sensitivity: 95 db. Magnet: 50 oz. Voice Coil: 2.5" Impedance: 8 Ohm. Pressed Steel Chassis. Paper cone. This speaker is brand new. One year warranty.