BLOCKHEAD 5150 Pack - Kemper Profiles Cabinet IR Pack Mesa Boogie Oversized 2002 V30

Mesa Boogie Oversized 2002 V30

DR MULTIWATT [Mesa Boogie Dual Rectifier Multi Watt]

21 unique mic positions on each speaker for sm57

Mesa Boogie Oversized 1999 V30

BLOCKHEAD 5150 Pack - Kemper Profiles Cabinet IR Pack Mesa Boogie Oversized 2002 V3034 Direct Profiles Last year I managed to find a Peavey 5150 from the first year of production. Over time these have gained a kind of mythical status not for any particular reason as the circuit of the amp never changed throughout production. That said, I have compared extensively to my 6505, and while there shouldn't be any appreciable difference, there is some kind of magic in the older amp. Could it be just related to the age of the transformers?