I am stating to wonder if I blew the compression drivers on my JBL 29AV-1's. Maybe it just my ears or imagination. But I do detect some roughness in the voice range. Not always though.
Last weekend I did play Stevie Ray Vaughn's Say What! turned up to 0 for a few minuets and +7 for just a couple of seconds. I suppose a Ohms test on the drivers will determine if it is in my head or if they are actually slightly blown. What other things can I test / inspect to diagnose the health of the speakers?