Crazy, I am looking at the same 2 speakers today. I haven't found anywhere to hear the L100 Classics, but I am very familiar with the Heresy IIIs having owned a pair and upgraded to La Scala IIs in my main system. I'm now looking for speakers to power my vintage Luxman office system (C1010 and M2000) and was about to pull the trigger on a pair of 70th anniversary Indian Rosewood Heresy IIIs, but got the vintage itch looking at the L100 Classics with the orange grills.
Sounds like the Heresy IIIs are going to be the way to go (and save a bit of coin).
Sounds like the Heresy IIIs are going to be the way to go (and save a bit of coin).