Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 1.75" horn driver manufacturers and suppliers, providing with 1.75" horn driver wholesale, welcome to import high quality products from our factory. SD-1089A is a 1.75” horn driver with polyimide diaphragm. We use thick washer and t-yoke, high grade ferrite magnet, aluminum cover to get high sensitivity high frequency. It is suitable for 12” ,15” cabinets. We have more models like plastic cover, aluminum cover , screw on , bolt on and so on. Products specification Rated Power: 40W Peak Power:80W Impedance:8 Ohm DC Impedance: 5.6Ohm Sensitivity:103dB Frequency Response:1.2khz-20khz Voice Coil Diameter: 1.75 Inch Voice Coil Wire Material: CCAR Bobbin Material: Kapton Voice Coil Layers: 1 layer Diaphragm: Polyimide Throat (Exit)Diameter: 1 Inch Magnet Size: 40OZ Mounting Detail: Outer diameter: 120mm/4.72” Depth:61mm/2.4” Mounting hole: φ76*3*M6 /φ56*2*M6 Packing Information: 1pc one carton, 8pcs one outer box Carton Size: 27.5*28*21CM Other Information Place of Original: Guangzhou, China Payment Terms: T/T, Western Union, Money Gram Port of Delivery: Huangpu, Guangzhou, China Production Lead Time:30days after receive 30% T/T