1" Titanium Super Tweeter. Diamond Chrome Cutting Finish. Die-Cast Aluminum Frame. 1" High Temperature Kapton Voice Coil. 30 oz Magnet Structure. 150 Watts RMS/300 Watts Peak. 4-8 Ohms Impedance. Ferro Fluid Enhanced Voice Coil. Sensitivity: 104dB. Frequency Response: 2kHz - 20kHz. Mylar Crossover Capacitor Included. 3.125" Diameter - 2" Mounting Depth