M-Audio BX8 D2 8-Inch Active 2-Way Studio Monitor Speakers Bi-amplified recording studio monitor with 130 watts of distributed power Class A/B bi-amplification with precision crossover lets each speaker work effortlessly to reproduce your mix with stunning accuracy 8-Inch low-frequency transducer with Kevlar cones for rich, defined lows 1.25-Inch high-frequency drivers with natural silk domes and integrated waveguides for smooth, clear highs and a wide -Inchsweet spot-Inch Rear porting for extended low-frequency response while reducing air turbulence Magnetic shielding eliminates interference with other electronic equipment Balanced XLR and 1/4-Inch inputs let you connect to a wide range of audio sources