Professional quality tweeter with heavy die-cast aluminium housing fitted with powerful high temperature Titanium voice coil. Features: Diecast Aluminium Frame High Temp Titanium Voice Coil Max Power: 300W RMS Power: 150W Impedance: 8 ohms Magnet Weight 20 oz Voice Coil 44mm (1 3/4 inch) Freq Response 1.5KHz - 20KHz Weight: 726 grams Dimensions: 100 x 100 x 78mm