Sound you can trust - Class A/B bi-amplified design with 150 W of distributed power for studio-grade, accurate sound and ultra-wide range 37-22 kHz frequency response. 8 Inch low-frequency drivers with Kevlar cones for rich, defined lows and 1 Inch high-frequency drivers with silk domes and computer optimised waveguides for smooth, clear highs. Connectivity covered - XLR balanced and 1/4 Inch balanced/unbalanced inputs for connecting mixers, amplifiers, instruments, DJ gear and more. Acoustic Space Control adjusts the sound output to the listening environment for accurate sound reproduction. Precise positioning with conveniently located pin-hole LEDs which shine at their brightest when the speaker is positioned at the ideal monitor angle.