Wisnon thanks for your clarification and for sharing all those links.
Obviously I wrote my listening impressions of that room, and since I am not a professional audio-reviewer, a journalist, a seller or an audio engineer, those impressions are of low value or at least are valid only for myself. I'm not a pure "audiophile" as well, I am "only" a music passionate lover. In any case, just to let you know, last 6 weeks have come to Florence and have performed in several individual concerts the best 10 pianists on the international scene of Classical Music (from Pollini to Zimerman, from Lang Lang to Kissin, except Martha Argerich who performed here in Florence last year). And I attended each performance, from different seats and different positions, and I could hear a lot of different ways to play the same piano (Steinway) and sometimes different ways to play different pianos (Bosendorfer or Fazioli). Once at home I listened again the same pieces on several recordings, and I always felt a "natural sound" of the piano recorded. In that room in Munich, on the contrary, I listened to a complete not natural sound of the piano. The same is valid for the Paganini Violin concert I listened in that room: solo Violin and strings sounded "arficifial" to my ears (and I had attended a live concert with the same Paganini Concert played by a young but demoniac violinist few weeks before...). I spent in that room, totally, less than 20 minutes and I cannot be too "tranchant" in my judgement, I only expressed my very personal and subjective listening impressions, and I'm perfectly aware of my limits! ??