Avantgarde Duos: Omega or Mezzo?

Correction: Above all I value musicality...

I have Duo, never heard Mezzo. If I may, I would really try to audition first. I suspect Mezzo is a significant improvement, but you should absolutely take your room into a consideration. What size is it, BTW? Any room treatments?

I have two possible rooms:

1- Guest br: 16ft x 12ft (about 18sqm which is less than the 20 recommended) - Could consider room treatments here.

2- Main room: 42ft x 24ft. No room treatments here.

My main concern with the Omega is that I've read that bass integration isn't that smooth, and I get the impression that the Mezzo's would be a more complete speaker. Also, I want to play them at a low volume most of the time, and from what I've read the Mezzo's would do this better.

As for auditioning, save for flying to Germany, I think it will be hard. It's a bit shocking that the dealer wouldn't carry a pair of Mezzo's since I live in NYC (prob one of the top income cities in the US).

Miguel

Maril555: Nice system! Noticed you have subwoofers. Is this b/c the Duo Omega won't go low enough?

Subwoofers I have not because Duos not go low enough, I actually measured them go down to 18-20 Hz. It has more to do with the optimal placement, in doing that for approx. 2 years, I have realized, that a main speakers placement optimal for imaging is not always ( as in never) coincides with the optimal bass reproduction
That forced me to use an active crossover and cut off Avantgardes at 80 Hz , everything below that is handled by stereo JL subs.
An overall improvement has been immense. I have come to a conclusion , that this approach is probably the only correct one.
In your case, I don't think the smaller room could accommodate Mezzos