I have a problem. I just blew, for the third time, speakers that were in my SWR big foot 2x12 cab. I use a Carver pm1200 power amp (700w@4 ohms). I have blew up the stock bag ends, peavey black widows, and recently Eminence Kappa pro (400w). I am not a ignorant youngster that tries to out work the PA either. usually I have the pre amp (aguilar db659) at the equilavent of pre-gain=11 oclock, post gain=8. I run a hartke 2x15 with Eminence deltas(300w) and havent blown those ever??? any thoughts on why in the world this happens, moreover could you recommend a head doctor to examine my head as to why I keep dropping $100 a pop, twice a year on new speakers?