Craig:
I was thinking others might chip in as there are quite a few folks who have compared two or more generations of Sapphires. But since no one has so far

Let me start with quotes from the recent review by Paul Cervantes, at
UltraLinear Audio:
"Audio Concepts has been making Sapphires, in various forms, for decades. I’ve heard many of the
iterations and have always come away impressed but never overwhelmed. While better than good,
they just didn’t cross the precipice to greatness. Then came the Sapphire XL. . . . .
Though the folks at ACI are too modest to use the appelation, the Sapphire
XL is a true reference speaker, and that is not a term I use lightly. Highly
recommended for immediate audition."*Note that Paul had previously heard Sapphire III LEs and 25th Anniversary Sapphires.
As the guy ultimately responsible for the sound of our speakers I agree with Paul. With each new generation of Sapphire we've tried to make consistent improvements without giving anything up . . . not always easy to do. I've spent many, many happy hours with each generation providing great music. I must say, at this point, I really don't see how we're going to improve on the XL . . .