I'm really curious about this question, as I have read that frequencies in the 2-6 khz range are more dangerous at high decibels and can harm you at a lower exposure time than can other lower pitched noises. I have mixed opinions having been 'bitten' by high bass frequencies before, but... In my case, a half- second exposure to a 5 khz sound of 90-95 ish decibels seems to have set off T and ear fullness/pain for me, and probably some hearing loss. I was talking on a telephone when I pronounced an "s" sound too loudly. Crazy, I know, but I am wondering if it has anything to do at all with the fact that these noises are regarded as more dangerous in general? Any thoughts?