Today I managed to travel to our dCS distributor to listen to the Apex Vivaldi. It was being used in the same large room where the WAMMs were demoed , but this time hosting the the Alexx V driven by Dartzeel NH 468's with an Audio Research REF6e preamplfiier. Power cabling by Nordost, signal cable by Transparent. I have long experience with this room, having spent many afternoons and even nights there listening to many systems.
We listened to Qobuz via Mosaic, no server or physical media, focusing mainly in recordings that I often use for evaluation and have listened in life presentations, such as - Savall "Routes de l'Esclavage" and his Beethoven symphonies, as well as some non classical music, all in 88/24 or 96/24. The dCS system included the Vivaldi clock and upsampler.
Nothing could prepare me to improvement noticed in the recordings I know well. Much more real detail - not exactly in more instruments, but in the way they sound and are being played, as well in their integration in the overall, and an easiness that I have never listened before in stereo. The feeling that I have been there was really fascinating, recreating visual images of events that happened long ago. Voices were more rich and natural (in the sense that have been used by the majority of reviewers during many decades) than with the previous version of the Vivaldi. The characteristic sound of early 19th century instruments was rendered with perfection without any excesses.
No words can explain the difference, other than making the usual hyperbolic comments. IMHO it is not closer to top vinyl, on the contrary - it walks away from vinyl artifacts.
Unfortunately my time was limited and I could not listen to jazz and piano - a new trip will be needed soon, while waiting for the upgrade of my DAC. But I am really happy that the upgrade is possible and will be carried soon.