If I may make a strained analogy -- the original recording mix is the meal a chef in a quality restaurant prepares and mastering is the overall restaurant experience for the diner. Mastering cannot take a poorly prepared meal and make it taste wonderful. Mastering can complement and enhance a dish to make it a truly exciting dining experience. If the mastering engineer is presented with a well recorded, well mixed album, then they do very little sound alteration in mastering process. They stay out of the way a let the recording come through.
I agree with Folkfreak's comment above. Any decent system will sound real good with a great recording. It's how they handle to mediocre to bad recordings that makes for a truly satisfying system.
I agree with Folkfreak's comment above. Any decent system will sound real good with a great recording. It's how they handle to mediocre to bad recordings that makes for a truly satisfying system.