Specifications: Nominal Diameter = 1" Nominal Impedance = 4 OHM Maximum Power Handling = 240W RMS Power Handling = 120W AES Power Handling = 60W Sensitivity (1w/1m) = 104dB Frequency Response = 3K-20KHz Recommended HI Pass Crossover = 3 KHz Motor: Voice Coil Diameter = 1" / 25.4mm Winding Material = KSV Diaphragm Material = Titanium Magnet Material = Neodymium Body Material = Aluminum Measurement: Overall Width = 2.93" / 74.4mm Overall Depth = 1.87" / 47.5mm Front Mount Baffle Cutout = 2.28"/ 58mm Mounting Depth = 1.61" / 41mm