The point you made about boredorm (and implied listener fatigue) is very valid.
To stop yourself going mad, how about restricting to fewer sessions (say 10), then have a break and change the track to a different kind of music and doing another stint of 10, and so on.
Choosing the Lorde song as your only test track is interesting. That ablum is quite compressed and "produced" (not all in a bad way). I wonder how a different kind of sound would fare?
I really like her album BTW.
My original playlist was not usable as i stupidly included songs from a hd that i didn't bring home with me. So yeah, i'm a bit of a genius like that. Anyhow, i chose it as it's a track i'm familiar with and the album is nothing short of awesome. I would like to also include some live recordings and may be of classical music in the mix to actually hear real (non synthesized) instruments and see if that makes any difference.
I will be redesigning the test and hopefully will give it another try on Sunday. I may take turns with another person - like do 10 each in one sitting and see what we find....
For some reason, i cannot find "stock" cables anywhere... Can we take the Blue Jeans Cable RCA as a "stock" cable, may be? I'll keep looking, but i don't want to go too far and end up with something that doesn't actually work...