Hi OH....no, you're not intruding lol - this subject is also an important one for all of us IMHO! And... AT LAST, another convert to mains conditioning!! As you mentioned, what this does - if a decent unit is used - is provide a wonderfully 'clean' background and space in which details can be presented more clearly and with much better separation and placement. The more subtle frequencies can also then have more of a chance to shine. The degree of improvement will, of course, depend on the quality of the rest of one's gear and, as you say, that of the recording itself! And the more pieces you listen to, the more you will begin to notice these benefits...along with others, I'm sure.......WELL DONE!... ps. I suspect there are very few folks who wouldn't benefit in this way...often there's no obvious clue whatsoever of anything 'wrong' with our mains power supply, but it's fairly certain there are indeed enough 'gremlins' in it to at least have a negative impact on our quest for the highest possible quality of sound reproduction. pps. I personally don't keep my own units on all the time - I don't think there's any real need to with modern ones, but worth checking with instructions (if such info is given!). Also, it may - like my Regenerator and Balanced Mains/Filter units - have slow/soft startup function, which is great for our tube amps, if not already provided (F-A did apparently include this a while back...in Euforia at least, not sure about Elise...), so I never have to use the amp's power switch at all lol!!