Originally Posted by Linchpin
The key for me is to test a system with a well produced and engineered recording. I have about 500 CDs and a large iTunes library. Recordings in this category are in a minority. Trying EQ adjustments with a muddy recording will not accomplish much. Just as you can't make a pig sing you can't make a bad recording sound good with EQ. Garbage sounds like garbage.
If I get a chance tomorrow I will suggest a few recordings.
I tried a few different Sirius stations so I can only assume it is of a reasonable quality. I'll probably try different settings at different times so my ears don't adjust to it and it won't all sound the same.