Wayne Parham Messages: 18835 Registered: January 2001
Illuminati (33rd Degree)
If you have Speaker Workshop or something like that, you might try measuring the system indoors and outdoors, to see if the peak is there. If it is there indoors but not outdoors, then it is something in the room. If it is outdoors too, then it is in the speaker, perhaps something loose and buzzing or maybe cone breakup. If you don't see the peak either indoors or outdoors, then it is the recording.