Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18" metal frame speaker manufacturers and suppliers,Website:://.soundsingpro.com, providing with low price speaker wholesale, welcome to import high quality products from our factory. TB-18A is a metal frame with low price speaker. It is a mid bass speaker suitable for the customer who has limited cost of cabinets. Products specification   Size:18” Rated Power: 600W Peak Power: 1200W Impedance:8 Ohm DC Impedance: 6Ohm Sensitivity:97dB Frequency Response:30hz-1.8khz Voice Coil Diameter: 4 Inch Voice Coil Wire Material: Copper Bobbin Material: ASV Voice Coil Layers: 2 layer Dampers: polycoton Cone: paper Magnet Size:98.3 OZ Mounting Detail: Outer diameter:461mm/18” Hole Cut Out diameter:421mm/16.57” Depth:195mm/7.67” Packing Information: 1 speaker one carton, two brown inner boxes packed into one brown outer box Carton Size: 49.5*49.5*46.5CM 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