dB Technologies Opera 912 dx Aktiv 12"/1" Multi Purpose Loudspeaker with 900 W Digital Amplifier, 55Hz - 20 kHz, 130dB SPL Max, 60°x 65-80°, XLR/1/4" Jack Input (Mic/Linelevel Switch), dimensions 432 x 655 x 353mm, weight 18,1 Kg