Specifications: Nominal Diameter = 1.3" Nominal Impedance = 4 OHM Maximum Power Handling = 320W RMS Power Handling = 160W AES Power Handling = 80W Sensitivity (1w/1m) = 100dB Frequency Response = 2.5K-20KHz Recommended HI Pass Crossover = 2.5KHz Motor: Voice Coil Diameter = 1.3" / 33.5mm Winding Material = KSV Diaphragm Material = Titanium Magnet Material = Neodymium Body Material = Aluminum Measurement: Overall Width = 3.74" / 95mm Overall Depth = 2.24" / 57mm Front Mount Baffle Cutout = 2.95"/ 73mm Mounting Depth = 1.73" / 44mm