Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18"lf driver manufacturers and suppliers,Website:://.soundsingpro.com, providing with 18"low frequency speaker driver wholesale, welcome to import high quality products from our factory. SD-180032A is a high power low frequency speaker driver. Dual damper and 5” inside and outside wire design ,it can stand more power. Strong bass , clear midrange. Products specification   Size:18” Rated Power: 1200W Peak Power: 2400W Impedance:8 Ohm DC Impedance: 5.4Ohm Sensitivity:97dB Frequency Response:40hz-2khz Voice Coil Diameter: 5 Inch Voice Coil Wire Material: Copper Bobbin Material: BAF Voice Coil Layers: inside and outside Dampers: dual Cone: paper Magnet Size:150.4 OZ Mounting Detail: Outer diameter: 472mm/18” Hole Cut Out diameter:418mm/16.45” Depth:198mm/7.79” Packing Information: 1 speaker one carton, brown inner and outer box Carton Size: 49*49*26CM 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