Gershman Avant Garde Upgrade?

As an owner of RX-20's I wanted to revive this thread if possible.  I fond these speakers absolutely amazing and would love to improve their performance if possible.  Is the upgrade still available and is it done by Gershman or can be completed by simply replacing parts?

jk2011 I also intend to modify my Gershman Avantgarde.  Mine is in between RX20 and R1 model.  Did you do the work by yourself, or you gave them to a technicien ?  Did you change all the CO: tweeter -mid - bass ?  Did you change also the internal wiring ? It cost you around how many $ ?  Would it take long time for break-in in the new CO components ?  Did you use a particular "brand" for  the CO parts ?  Thank  you

... Just to be clear: Avant Garde is a 3-way speaker manufactured by Gershman,  and Avantgarde is a manufacturer of speakers with horn-based  components. They are 2 different things; this forum is about the Gershman 3-way Avant Garde speakers...

@jab - have you ever listened to Avantgarde Horns?

When I bought the Sonograms, I was not really in the market, but one listen had me returning to the dealer with amp and cables in tow - the rest is history

My experience with the Avantgarde DUO was just as dramatic - listening to the DUO's took me to another universe.

The sound is stunning - the most realistic I have ever heard,

But alas, this time - the price was a little too rich for me, so they stayed in the store.

I've listened to TOTL Sonus Faber and Focal, but for my ears the DUO's out performed them both

One day, when i win the lottery, the Sonograms will be moved to the A/V system and a pair of DUO's will take centre stage in my audio system

Until then I'm extremely content with the Sonograms - truly a masterpiece for the price.

Regards - Steve

@lgoler  - I’m using a NAIM 5i mk2 to drive my sonogram speakers.

@williewonka same question to you, what are you driving yours with?

@jk2011 curious how long it took for them (Gershman) to turnaround the upgrade?

@williewonka  Simaudio 340i but moved that to another home and now running a Schiit Raganrok with the AG's.  

As a fellow Gershman owner...
 - just curious as to what amps you are dirving them with?

Thanks

I have not, yet:(

I am also looking for the upgrade version.  Love the AG already... Igoler, done your upgrade yet and any comment to share. 

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