I'm using Alan Maher Designs for AC and DC bidirectional isolation, including their isolation platforms that are the 'bread slices' in my sandwiched stack of components...that means each piece of gear is being treated from both above and below - a double dose, in effect...everything improves greatly, but you're right ptss, I've found this sort of thing allows the meaning and value of the musical performance to come through as well. or better, than I've ever heard anywhere, in my CD only system. Doesn't seem to matter at all what disc, format, musical genre, volume level, time of day or anything else. It's all glorious. It's a huge understatement for me to say, at this point, that I'm well beyond any consideration of ever going back to raw digital. In the audio world there are the relative improvements and the "night and day" differences. No two ways about it - this has been what I'd have to call night and day...a total transformation.. Of course it **should** be, for the price (that I'd gladly pay again). Well over 10 grand for all the various pieces of AMD I've acquired for a system that cost 6 grand, new...(I know some people like to say that anyone who spends more on their tweaks than their system must surely have a screw loose somewhere, but all I can say is that I'm hearing firsthand what they're missing out on). I should point out that this much isolation is not just for the digital, but also equally for the analog....(and all the appliances and about most every other major noise source in my home, as well...which itself overall amounts to further improvement between the speakers).
But, more to your point, ptss, I'm hearing a very real essence of the soul of the musical performance in each and *every* recording...each track speaks volumes to me now about why it was composed/performed just the way in which it was - all the isolation and noise reduction has really flipped that switch here, as far as I'm concerned...but like you suggest: the artist's intent, and all that. I'm coming up on the point here of having fixed every single audible fault there ever was with this system. When I get there I will have nothing left to do but enjoy the music. Anymore, I know firsthand that this system mine of would Never have even approached such a place as this on its own - not without this overall level of isolation, anyway.