You are asking in the wrong place as you will notice few people here record concerts
most people just like to collect and listen to them .............which is ok as IORR ;-)
remember Google is your friend ...... search for OKM111 and when see a forum link search the forums for your model number
as someone may have already found the solution or just join and ask what you asked here.
Soundman Forum, Soundman.de
[
www.soundman.de]
The Freesound Project
[
freesound.iua.upf.edu]
[
freesound.iua.upf.edu]
Now you have nice mic's I would like you to get the best out of them :-)
mm