I suspect that what you're experiencing isn't a function of getting better equipment, so much as the fact that, over time, you've become more discerning, and more conscious of the fact that a lot of recordings really aren't very good, from a technical standpoint.
My advice would be to concentrate on assembling a system that makes great recordings sound great. When you find recordings that are too shrill or too flat, tweak your tone controls a little, or get yourself an equalizer.
My advice would be to concentrate on assembling a system that makes great recordings sound great. When you find recordings that are too shrill or too flat, tweak your tone controls a little, or get yourself an equalizer.