OK I added the sub back crossed over at 60hz and at the same volume setting I am hitting 108db and the sound is easier to listen to than without the sub at 100db however my ears are telling me that this is all I can take in one sitting. My XPA-2 is cruising along at 4 LEDs lit.

M80,VP150,QS8,ERD-1,XPA-2,XPA-5,UMC-10,PS3,XBOX360,Dish VIP622,PB13 Ultra,Panasonic PT-AE3000U