Neutral is satisfying to our ears as no one part of the spectrum is out of line with the rest, drawing attention to itself.
Nonoise, I think that this is what I would have tried to say and goes with the notion that some systems are cold and some systems are warm. Neutral would be in the middle, I suppose.
I really don't like saying that I want my music to sound as though it is live, because like others have mentioned, live isn't always a good thing. In fact, most live shows sound like cr@p.