Crown Audio by Harman




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How do I hang CM-31 mics for a musical?

I need to mike a stage of maybe twelve students who are performing a musical. The actors move around a lot, so I wanted to hang some mics. I have seven CM-31's I wanted to hang; how should I do that? Thanks.
Ben Harris

Reply: We suggest that you use as few mics as possible, because more mics create more feedback and reduce clarity. If the stage is narrow, maybe 15 feet wide, you could use one CM-31 in the center of the stage. Hang it as low as practicable, about 5 feet in from the stage front edge, aiming at the actors' mouths. For a wider stage, use two or three CM-31's dividing the stage in thirds. You might also try placing the mics directly on the stage floor so that they act like supercardioid boundary mics. Often this works as well or better than hanging mics. Tape the mics down with gaffer tape one foot in from the stage edge, being careful not to cover the sound-entry holes in each microphone. Be sure to use a graphic equalizer to reduce feedback frequencies, as explained in this guide:

Speech Sound Reinforcement Application Guide  (1.74 MB pdf file)