Sonorous1: If you think the Maggies are ok, then I still suspect the amp may be clipping. I am dubious that 62 watts at clipping is enough power for the Maggies. I suggest that you borrow a high power SS amp from a friend or a friendly dealer and try it out. Crank up the volume and see if Maggies still crackle. If not, then you solved the puzzle.
Good luck and let us know how you make out.
Good luck and let us know how you make out.