The R-122 MKII is a high output microphone. When used on loud sources, the possibility exists of overloading the input of your microphone preamp. An easy fix is to use an inline attenuator between the mic and the input of the mic pre. Inline attenuators, such as those made by Switchcraft, AudioTechnica, Shure and ProCo, are inexpensive and readily available through your pro audio dealer. Often times, simply moving the mic back slightly will clear it up and yield a more balanced sound.