I do not hear the resonance that
@amirm has spoken of. I've played the same Eva Cassidy track (same album and version as the one he showed) using Qobuz on the NAD T778, Parasound A52+ amp, DIRAC off on both UB52 bookshelf speakers as well as on the UC52 center channel. I did not hear the squeak that he described after the 55 second mark. I put my ear right up close and played it back numerous times. I may do a close-mic recording if there's a demand for it.
My issue with the Uni-Fi 2.0 is that I didn't find the treble very pleasing, nor did I find it overly pleasing on the Debut Reference. I said this in my video review. I've come to the conclusion that they're using pretty much the same tweeter on both. I haven't spent too much time looking at the Klippel measurements, but is there anything there that might explain why the treble response might sound somewhat harsh?
I've forwarded this post to Andrew Jones so hopefully he'll chime in. He's not really the type to shy away from stuff like this from what I've seen, but who knows. That's up to him.
A lot of people are jumping to conclusions without knowing for sure if the issue is widespread or specific to this one speaker. To me that's the danger of taking these at face value. It's like the thing with the Denon review. It's important to analyze the data to figure out what it's telling us. Science is about continually asking questions surrounding the data given to us via measurements. It's important that we interpret the data correctly (using the scientific approach) if we want to come to the right conclusions.
