The conversation has gone down the one of usual roads of thrashing around about microphones, frequency response, mastering techniques. And how everything is adding something, normally the "wrong" thing to the recording. Virtually nothing about the approach of taking the wrong thing from the playback. Distortion, of course. IMO (okay, Tim, sit down, sit down!!).
The journey with the friend, in hindsight, has been very instructive. Having both LP and CD, and he being prepared to get his hands totally dirty in the guts of these playback devices certainly meant excellent feedback as to relevance of various elements in the quality of playback. The TT, a cheap Projekt, has had its bearing worn out through the various experiments, so he's engineered a new one there, the drive belt and pully arrangement is completely altered, the mounting and suspension of the motor, on and on. Each step has been a movement forward, and the end result has been -- drum roll please!! -- that the CD doesn't sound like CD, and the LP doesn't sound like LP; they each just sound like a mechanism playing back a recording. My feedback to him has been, for example, that his LP version of some CD album I have doesn't sound right, and the end result has been a convergence of the sound characteristics of the two media.
And what is that convergence? It is the sound of the recording, the quality of what it sounded like at the time of mastering the album. The media that the particular recording is on is now pretty irrelevant, this noise floor thing is nowhere in sight.
And as a final note: I was thinking back to some very, very expensive TT setups I listened to while part of that audio club scene and shudder. When they were good, they were very, very good; but when they were bad, ...
Frank
Frank is the illusion more believable between the two? Or are they both equal? regardless of everything else.