But IMHO changing speakers will oblige you to change a lot in your system. It seems to me that a room designed for Alexia's will not match OB speakers such as the Diesis.
>>>>The comment that I would make is that in the Rhapsody listening room, which is much more like an equipment/speakers laboratory vs. a properly set up listening space, the Romas are getting accolades that I have not ever experienced. I will not mention names, but several well known audio reviewers and recording engineers have had similar reactions to the Roma as Bob did. Actually anyone that hears them at Rhapsody has had the same reaction.
The Romas are set up with speakers and electronics around them, speakers behind them, too many speakers and electronics, period. The result - mesmerizing sound, with pretty much any amplifier/electronics that are connected to them.
My point is that I would question whether Bob or anyone would have to change ANYTHING in their room or system to hear the glory of the Roma. I've tried it with SS, SET's, high power tubes, high power SS.....all streaming Tidal/Qobuz and have not been dissapointed yet with a "bad match". And this is in a "zoo" of a room.
The ONLY item that needs to be addressed is that because of OB the Roma or any of the Diesis five models should be at least 1M off of the back wall and it gets better the further out in the room that the speakers are placed.
Up against the back wall as you might do with a sealed box cabinet is a no-no.
My only experience with the Diesis was the Roma Diesis in a show two years ago - Diesis is not a just arrived new brand - in what I consider a very unfair demo where they sounded very poor, so I consider that it is not relevant. Perhaps my disappointment was bigger because I had high expectations on them... But contrary to horns, that are highly directional, I expect OB speakers to be room sensitive. I have found that acousticians default are box speakers from the F. Toole school and they design mainly for this type of speakers. Anyway, next time I will travel to Madrid I will not miss listening to them again at Ars Audio Antigua, their local distributor!
I find intriguing that a different amplifier could recreate a similar sense of ease and flow in the Alexx. Audiophile life is filled with unexplained facts!