Just a few comments...
The room is acoustically treated following two acoustic analysis performed by professionals in the field. The acoustic measures were shared with Dario Biner, the designer of the Ultime 2 loudspeakers who concluded that I had reached a plateau which it would be difficult to get behind. This is a living room and not a man's cave (more details in my system's thread).
The Alumine 5 SE were supposed to be home auditioned before the Ultime 2 but the carrier decided otherwise as the Ultime 2 arrived before and I got hooked by them. Having listened to the Alumine 5 in a room about the same size as mine, I could tell that the Ultime 2 were way better as my ultimate speakers.
The loudspeakers were actually installed by Jean-Pascal Panchard, the CEO of Stenheim himself, with the support of Hervé Delétraz from darTZeel (just check my system's thread). It was a full day job. Right from the start, I had indicated to Jean-Pascal that I wanted to get the support from a professional who could fine-tune the positioning once I had got to learn the loudspeakers after several months of listening so I could clearly identify what could be improved. For Sterling, it was paramount that I could clearly articulate what I wanted to achieve.
Sterling has set up several pairs of Ultime 2 whereas my dealer only sold one pair so far (mine). The service I got from Stenheim and my dealer is second to none.
The changes of positioning were not that small. See below.
Before:
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After:
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I am not going to repeat what I told Sterling and Roy in terms of the outcome. You can read it in Roy's article. I stand by my words. And to Ron who is showing some skepticism but who is struggling getting the best out of his large loudspeakers, I would suggest to reach out to Sterling who lives in California. Sonoma County is not that close to LA but I am confident that Sterling could do the job quite well.
There are several WBF members who have listened to my system before Sterling's visit. One of them actually hinted me that he would like to come back. So I will leave to him to report whether he is perceiving substantial differences.