there really is no point ANYBODY making any recommendations
Pretty much sums it. In ancient times, a recommendation from someone whose system I'd heard and judgement I trusted would carry some heft. Your system gives you a slight uptick but "Sublime even on cassette" skotches it.<vbg>
A large problem is naiveté and owner enthusiasm for the latest and greatest which they of course own. The cost of my system wouldn't cover the tax on many, but no one who has ever heard it [or any far more costly predecessor] has failed to make complimentary comments about the precision, musicality and emotion.
A miniscule proportion of posters have any iota of a musical reference other than HiFi and even then their reference is that it sounds better than their laptop, iJunk or smartphone. Even then some play severely bitrate limited incoherent MP3s and rave about the sonics.
After decades of being an audio recluse, recent auditions of popular/well reviewed/very expensive gear has left me non-plussed. An advantage of the modern era is stores can pull down almost anything. When I cannot distinguish multiple backing vocal tracks or piano solo instrument from tracking piano in a different studio, there is something seriously flawed in the playback. These demo's are supposedly optimized in single systems rooms. A great system draws the listener into the music. None did. Quite the opposite. I just wanted to turn it off.
in evaluating, they must be as rigorous as possible in establishing baseline conditions. It's patently worthless to insert one system, play for a while, then insert another and play different source material. My recommendation is to have a library of reference tracks, note ambient and electrical conditions, play the system for N minutes with the same 'warm up' disc while out of the room. Only then evaluate, making notes all the while. Rinse and Repeat for additional units.
The most that anyone reading here should infer is that power conditioning
MAY be beneficial and they
MUST evaluate for themselves in their own system, preferably with multiple devices.