Specifications: Nominal Diameter = 1.18" Nominal Impedance = 4 OHM AES Power Handling = 15W Program Power = 30W Peak Power = 60W Sensitivity (1w/1m) = 95.2dB Frequency Response = 920Hz-20KHz Recommended HI Pass Crossover = 3.8 KHz Motor: Voice Coil Diameter = 0.98" / 25mm Voice Coil Former Material = KVC Winding Material = CCAW Diaphragm Material = Titanium Magnet Material = Neodymium Body Material = Aluminum Measurement: Overall Diameter = 2.28" / 58mm Overall Depth = 1" / 26mm Front Mount Baffle Cutout = 1.85"/ 47mm Mounting Depth = 0.65" / 16.5mm