I think you and I had different experiences with the Ultras. What made you sell your Chanes?
My comments regarding the Ultras is not to degrade them in any way. Of course, I am referring to only the Ultra Bookshelfs. Have not owned any other(s) of the Ultra speakers. As to why I sold off my Chanes. Will try to explain as best I can.
On December 24th, 2015 I had what was called a "mild" heart-attack. However, I can certainly say that there was NOTHING mild about it. Lets just say it was a real eye opening experience for me. As such, I began to look at my life differently then ever before.
Decided that it was time for me to start doing some of the things that I have always wanted to do. I had been out of this hobby for over 6-7 years at the time. At first, I just wanted to ease back into things all things audio. However, it wasn't long before I got back in full steam. Hence, one of the things I wanted to do was experience some of the speakers that I have always wanted to. It seemed to be more of a journey if you will.
I came across the opportunity to buy a set of the Ultras used at a very good price. So, I opted for them. Needless to say, I really liked them a lot. Everything from the build quality to the sound. But, I also wanted to experience other speakers that I was looking at.
At that point in time, the Chane A2.4's were not even being sold just yet. Have always liked an MTM design. Hence, my attraction to the A2.4's. Eventually, I was able to order (3) A2.4's across the front. I was very impressed with them whereas the Ultras did not quite "wow" me like the A2.4's did.
All along I have been wanting to head in the direction of going 2-Channel. That is why I have been so curious about tube amps. Music being my preference, I just prefer a more warm sound signature than what the A2.4's were giving me. Now, I have my Denton's and the Diamond 220's and could not be any happier.
I also still have my B&W CM1 S1's that I also love. Both the Wharfies and /or the B&W CM1 S1's are very musical. They (Wharfies) are not necessarily the last word on detail/resolution, but they excel with vocals and are never fatiguing no matter how long my listening session is. This is my subjective opinion. It is okay to have differences inmho.
Your setup is very impressive and I am very happy for you. But, we all hear differently and prefer different things. Not to mention different rooms, music, and etc. For my needs I am very happy with my Wharfies and B&W's. HT is not my thing. Never really has been. But, none of my comments are meant to degrade the Ultras in any way. Hope this answers your question.
Cheers,
Phil