The [M] series delivers studio quality instrument reproduction. Exhibiting superb vocal imaging, accurate detailed midrange, and tight punchy bass. Utilizing the 'Nextel' line of drivers from SEAS, the [M] series operates with low order crossovers, contributing to their life like soundstage.  The [M] Series is designed to bring out micro details in your music, deliver a flat SPL response, and is capable of 'transporting the listener to the original recording environment'.