FWIW, I put my 4060's to the test at the first Mr. Crowes Garden show earlier this year. I had them HRTF, and was about 6 rows back from the stage. I'm not sure since I had my hearing aids turned off, but it had to be ~115-120 db for most of the show. Ran 4060>Nuemann BS48i-2 Power Supply>Gmini400. Recording came out really nice with no distortion or clipping at all. YMMV