The metal of clarion tweeter is aluminium

(1) Two way, gamut system, it is professional stage speaker.
(2) The frame of this produce is 2.5 cm ply of high density mid-fiberboard.
(3) Use high quality loudspeaker that is produce by us. With auto protection
  system, it keeps the stability in long-playing.
(4) This design is base on the demand of disco or the open stage.
(5) Double 15 inch loudspeaker.

Specifications:
   Frequency Response 45Hz-20KHz
   Components Bass speaker-15 inch  x2 (Y15-2)  Tweeter-YM44.8-8T02(H45)
   Impedance 4Ω
   Peak Power 1000W
   Sensitivity 100dB
   Dimensions(cm) 50.5x50.5x130