dB Technologies Opera 508dx Aktiv 8"/1" Multi Purpose Loudspeaker with 400 W Digital Amplifier, 67Hz - 20 kHz, 121dB SPL Max, 60°x 65-80°, XLR/1/4" Jack Input (Mic/Linelevel Switch), dimensions 300 x 484 x 284mm, weight 7,9 Kg