so many variables with classical... different orchestras, different musicians, different venues... etc. some recordings might have excellent sonics, but do not connect you in an emotional way to the piece.
also, much of the classical repetoire is not in print any more. it makes it really hard to make a suggestion about a particular pressing that might be outrageously expensive, or just plain unobtainium.
look at the "chaconne' in bach's partita no. 2 for solo violin. there are like 25 different versions of this same piece on youtube and they sound nothing like eachother. my favorite is this one by itzhak perlman... enjoy.
he gets into the chaconne at 13:50 in the video