Gershman Avant Garde Upgrade?


I'm the proud owner (purchased here) of a pair of Gershman Acoustic AG's that I love.  I just spoke with Ofra Gershman who mentioned that they have an upgrade option for the AG's that if I understood correctly, redirects the bass making it less muddy, in addition to full replacements for the drivers, woofers and tweeters.  Has anyone done this upgrade for the AG's and if so, what is your impression of the change in sound?


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I’m also a proud owner of a set of Avant Gardes which were upgraded a few months ago.
The Avant Gardes sounded wonderful before but, I must say, I’m ecstatic and extremely happy with the upgrade, well worth it !!!
The bass extends way lower and very well defined, the imaging is even more three dimensional and very precise. There is also a big improvement in the mids which appear to be richer, clearer and more pronounced.
Very happy with it.
Hope it helps
I am also looking for the upgrade version.  Love the AG already... Igoler, done your upgrade yet and any comment to share.