I think we are probably agreeing on the same point. 

I find it hard to conceive that a great system can actually make poor recordings sound good.  I don't find it at all hard to conceive that one can enjoy poor recordings anyway - I'm sure its psychological (else the Dansette which makes everything sound poor in audiophile terms, wouldn't be so much fun).

I can imagine that if one were very analytical about it one might not be able to enjoy poorly recorded but great music.  If one also believed that the "greatest system of all" could somehow make Iggy and The Stooge's Raw Power sound anything other than an apalling mess, I suspect one would be wrong ... and spend a hell of a lot money before the truth dawned.  NO system could do that ... and what would be the point anyway - its great as it is