Huh, I've actually never seen that thread. I've definitely missed out on some information. Will need to peruse more carefully.
I've always had the mindset before that being intimately familiar with a few recordings is what is most important to comparing systems.
Define "shit recording", though - to me, that's zero dynamic range music (a significant proportion of modern pop), but music with lower levels of noise reduction like Miles Davis's Kind of Blue are perfectly fine recordings imo. I can't see the former being much good for comparisons since they are practically designed to be played on shit equipment.
Shit recording might be an overstatement, at the least a recording with easy to spot abnormalities that might be accented on sub par gear.
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