Midrange Speaker / MS Series The MS SERIES is a high performance wide bandwidth transducer optimized for use in midrange frequencies. The MS SERIES is an upgraded design that features many CFS new technologies and performance upgrades. MS6 | 6" 200 Watt Max Power Midrange SpeakerMS8 | 8" 300 Watt Max Power Midrange SpeakrMS10 | 10" 300 Watt Max Power Midrange Spaeker