These three comments really nailed it, I think.
A highly resolving system will allow you to hear everything but not at the cost of anything....It will be done in a relaxed yet rich and full manner....Think of substituting the edgy brightness with a burnished quality.
A high resolving system starts with a fully acoustically treated room. It is so much more important than the choice of audio equipment imo.
it's a balance of detail and warmth.