S Scott K Well-known member Joined Apr 2, 2006 Messages 62 Reaction score 0 Aug 30, 2006 #1 On a Mark III head, how would I be able to know if Simul Class was added after the amp was produced?
B Boogiebabies Well-known member Joined Jan 30, 2005 Messages 4,578 Reaction score 22 Location Korn's Bakery Brooklyn NY Aug 30, 2006 #2
