Ucsb21, you stated in part "I also noticed that a lot of albums (that I used to think sounded ok) sounds terrible on my new system" and "I've tinkered with the tone controls and it is a quick fix but, a few albums are still unbearable."
You will get more helpful responses if you are more descriptive and precise (rather than 'terrible' and 'unbearable') as to what it is that you are finding problematic about the source material, and, perhaps provide an example or two of the problematic source material.
You will get more helpful responses if you are more descriptive and precise (rather than 'terrible' and 'unbearable') as to what it is that you are finding problematic about the source material, and, perhaps provide an example or two of the problematic source material.