Harbeth 7es2 vs Harbeth 7es3

Somebody's fibbing somewhere.....

the 7-2's and 7-3's are somewhat close in overall sound, but the 7-3's have tighter, deeper bass, overall clarity is way up, more detail. If you can find a nicely priced 7-2, not one that has been messed with, you'll be very happy.
I can't imagine the said speaker working properly, different crossover, etc.....I'd pass if I were you.
Good luck!

a much tighter, seemingly lower bass, for one.
also an increase in clarity.
definitely noticeable.

Agree with Nolitan. However, if you love your present gear and stands, and the 7's are working great in your present room, I could easily see trading up to the 7-3's... The increase in clarity, bass extension and tightness would definitely pay for itself in the long term. And definitely have a great stand for either- skylans or Wayne Taylor's.
They are noticeably better than the 7-2's.
"Accurate" is highly subjective .