1.Model:SM-615Y 2.Coaxial 3.Rated Power:40W 4.Speaker Unit Size:6.5'' 5.Frequency Response:60Hz-20KHz 6.Impedance:8 7.Sensitivity(1w/1m):90dB 8.Dimension:Ø230*105mm 9.Mountung Diameter:Ø205mm 10.Material:ABS 11.Weight:1.28kg