An audiophile "type 2 recording" classic:
Patricia Barber, 'Café Blue'. If anyone hearing this with B4M doesn't like much more than without it ... well, we must be in a different hobby. It's just spectacular. Utterly realistic ... other than the percussion spread in 150 degrees, each component of the drum kit identifiable in a different point in space, but that's intended this way in this recording imho.
I guess the better the recording, the better B4M behaves. Perhaps the same could be true with the quality of the hifi gear used.
I may post dozens of other examples, but in fact almost everything I play here sounds from better to radically better with B4M. Some early stereos that are almost dual mono recordings need taming the XTC slide a bit; in other of poor stereo quality the "effect" is very subtle. Worse, to the point of disabling XTC? I can't remember a single one.
And that is comparing with a pair of speakers (the maggies, 1.7i in my case) that even in standard stereo I'm convinced are significantly better than the average (or anything near their price) in the recovery of the spatial information that's on the recording. Also in a room that, although fairly large, it's acoustically asymmetric, which is not good for XTC (that's why I only get less than 8 and 11 db per channel).
View attachment 377012
On the other hand, the almost massless diaphragm of the maggies is extremely fast, and I suspect good transient response must help XTC. I think Choueri sometimes uses KEF LS50´s in his demos and lab, that are also good in this subject (I also have them, but B4M performed much better with the maggies in the single comparison I did of this time ago).