12 inch speaker very high quality with Ceramic magnet for high power This is the ceramic version of the JP12N CLICK HERE FOR A SOUND SAMPLE Nominal Overall Diameter: 307 mm/ 12 inch Musical Power (DIN 45500): 100 Watt Resonance Frequency: 112 Hz Nominal Voice Coil Diameter: 38 mm/1.5 inch Magnet Weigth: 810 Gr/ 28.5 oz. Sensitivity @ 1 W, 1m: 98.4 dB
