Audix OM7

I heard Foo Fighters stopped using these because they aren't very resistant to sweat, well the same thing happened to me. I was satisfied with it and it's sound, until his sound characteristics became much much worse after i guess around 6 months of use on concerts.

so now it sounds very damp and muddy, it's really of no use whatsoever, not even for rehersals. for that i use SM58 that's actually 20 years old and still working fine