Specifications: Nominal Diameter = 1.18" Nominal Impedance = 4 OHM Maximum Power Handling = 60W RMS Power Handling = 30W AES Power Handling = 15W Sensitivity (1w/1m) = 90dB Frequency Response = 800Hz-20KHz Recommended HI Pass Crossover = 3.8 KHz Motor: Voice Coil Diameter = 0.98" Voice Coil Former Material = ASV Winding Material = CCAW Diaphragm Material = Silk Magnet Material = Neodymium Magnet Weight = 14 oz Body Material = ABS Measurement: Overall Diameter = 2" / 51mm Overall Depth = 1.1" / 28.1mm Front Mount Baffle Cutout = 1.85"/ 47mm Mounting Depth = 0.7" / 18mm