Choir Miking - KSM137 or SM81

Date Updated: February 22, 2018 FAQ #2665
Question:
I am trying to choose between the SM81 and KSM137 to mic a choir outdoors using sound reinforcement.1) Which one would be the best to use?2) What are the primary differences?3) Which one would you use?
Answer:


1) The KSM137 is quieter (less background hiss).
2) The self-noise level and the SPL clipping point.
3) The KSM137 with the A81WS windscreen, and the A53M isolation mount.