Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 18" metal frame speaker manufacturers and suppliers, 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