The [M] series, named to honor Judy Dench's portrayal of 'M', delivers studio quality instrument reproduction, exhibits 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'.  If you have not heard by now, all Black Ocean Audio speakers are named after infamous villains from Ian Fleming's James Bond and the 007 Movie Franchise.