1.75"" Titanium Diaphram Super Tweeter - 15 oz. Magnet * 200 Watts RMS / 400 Watts Peak - 1.75"" High Temperature Kapton Voice Coil * Ferro Fluid Enhanced Voice Coil * Sensitivity: 98dB - Frequency Response: 1.5kHz~20kHz * 4-16 ohm Impedance - 4.45"" Diameter - 3.25"" Mounting Depth * Cloth diaphragm 400 Watts max./ 1.75" Voice Coil * 15 oz. magnet/ 4-16 ohm * 1500-20,000Hz/104dB/w/m