I am in the same boat: Here's what Bob Crites responded to me in an e-mail. "We did a little test a few years ago between a Heresy III and a Heresy II. The Heresy III was new at the time and of course the Heresy II was about 25 years old. The Heresy III was the winner in that test. Then I put a pair of our new Heresy II crossovers and a pair of our titanium tweeter diaphragms in the old Heresy II and test again. This time was not that much difference between the two. In fact some people preferred the sound of the rebuilt Heresy II.
So, with a pair of our new Heresy II crossovers and the titanium tweeter diaphragms, I think you are very close to the Heresy III."
So, with a pair of our new Heresy II crossovers and the titanium tweeter diaphragms, I think you are very close to the Heresy III."