Soundsing Audio Manufacturing Co.,Ltd is one of the leading China 12" subwoofer manufacturers and suppliers,Website:://.soundsingpro.com, providing with 12" bass speakers wholesale, welcome to import high quality products from our factory. SD-120029A is a 12” high power bass speaker. Aluminum basket with shorter cone ,it can produce more bass. This speaker even in high power doesn’t have any distortion. It has very good performance of low bass and mid. Products specification   Size:12” Rated Power: 450W Peak Power:900W Impedance:8 Ohm DC Impedance: 5Ohm Sensitivity:96dB Frequency Response:50hz-2khz Voice Coil Diameter: 4 Inch Voice Coil Wire Material: CCAR Bobbin Material: Til Voice Coil Layers: 1 Layer Dampers: polycotton Cone: paper Magnet Size: 123OZ Mounting Detail: Outer diameter:310mm/12” Hole Cut Out diameter:280mm/11.02” Depth:115mm/4.52” Packing Information: 1 speaker one carton, two brown inner boxes packed into one brown outer box Carton Size: 35*35*31.5CM 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