High Frequency Aluminum Tweeter Diamond Chrome Cut Finish 1.5-in High Temp. Kapton Voice Coil 13 Oz Magnet structure 200 Watts Peak Power, 40 Watts RMS 8 Ohm Impedance Ferro Fluid Enhanced Voice Coil Sensitivity: 107 dB Freq. Resp.: 3000-22 Khz Requires crossover, included Replacement Diaphragm: TBHTWEETERVC Package: 108 x 108 x 75 mm Package Dimensions: 4.25-in x 4.25-in x 2.95-in