W-15 is high efficiency two way wide range speakerinside 15" LF and 1.25 HF, it has extra wide frequency responce the horn cover 800x500 . pro audio professioanl loudseaker loudspeaker speaker . (Specifications)/Frequency response:65Hz-18KHz/Speaker unit:/Low 15"x1+/Hi 1.75"x1/Rate Power:400W/Sensitivity:99dB/Max SPL:126dB/Input Impedance:4Ω/Cover angle:H 80°x V 50°(rotatable)/Connector:2xNL4 Speakon/Dimensions:468(F)/215(R)x685x445(mm)/Net weight:32.5Kg