Here, you can have even more fun
https://forums.stevehoffman.tv/threads/denon-vs-parts-express-round-1.984507/
None of this testing is blind hence not truly scientific. Actually our main takeaway was how not terribly reliable acoustic memory is.
For those those who like A/B switching, yeah I kind of get that, it's unnatural listening. But changing your setup sighted and listening over long periods, we just can't say that's valid either. Sure it's fair to conlude if you like/enjoy something more, or less, than before. However it is not correct to then assume it is due to actual performance changes since the psychological factors can't be removed.
Another viewpoint to consider is that if you like the sound you like the sound, and whether some other equipment *might* be somehow better does not matter if you don't think about it and just enjoy what you have. Hence I simply don't worry about cables too much. Some fine day I'll go to maybe Upscale and ask for a cable demo.