They are the same exact amp, they are using the same components and everything, they just took "5150" and "
Eddie Van Halen" because Eddie owns the rights to the name "5150" . . .as well as "Eddie
Van Halen" obviously.
EVH quit his endorsement deal, but its such a popular amp so they kept making it, they just took the copyrighted "5150" off and changed it to 6505, which is significant to something, I dont remember what, it relates to Peavey and its anniversary of something but I dont remember what.