Atlas Sound MS20 & MS20E Heavy Duty Microphone Stands The Atlas Sound MS20 heavy-duty microphone stands provide extra stability, extend from 37" to 66"and are suitable for indoor/outdoor use. Tubing is manufactured of 7/8" and 1-1/8" dia. cold rolled steel. Atlas MS20 features chrome tubing and an ebony finished base. Atlas MS20E features ebony tubing and an ebony finished base.