For those unfamiliar, M-Audio has been in the professional audio industry for quite some time now and have quite a good reputation in the industry for producing top quality products at reasonable prices. The BX5 D2 speakers themselves are active studio monitors, which means they are internally powered and require no external amplifier to drive. Each speaker has a 5′′ Kevlar woofer, a 1′′ natural silk dome, and a bi-amplified design which can output 70 watts of distributed power.