MODEL:TSU-100B(100W) Rated Input:100W;Impedence:8ohm(16ohm) Frequency Response:200-5000Hz Sound pressure Level:112dB(1w/m) Finish:Throat:(Aluminum die-cast) Black Case:(Aluminum die-cast) Black Horn coupling:1-3/8 18 TPI Dimension:Φ125*93(L)mm Weight:Approx:2.5kgs