The M-Audio EX66 monitor is the culmination of years of research developing cutting-edge high-definition active reference monitor technology. Our midwoofer-tweeter-midwoofer (MTM) design yields a wide sweet spot while minimizing room reflections. The unique low-frequency drivers and custom titanium high-frequency driver deliver exceptional smoothness and transparency across the entire audio band, without resonant peaks?and the drivers are impervious to environmental conditions such as heat, humidity, and sunlight.