This an odd "problem" in my -95 LS 400 with standard radio/tape/CD-changer combination.
If I listen to the radio, the sound is full, without being overly heavy in the bass. Actually it sounds really good if one avoids the horribly compressed and distorted commercial channels... :)
I run the tone controls flat, or perhaps with a minor increase in the treble.
If I however switch to CD, the sound changes alot. The sound is thin and tinny, and to duplicate the well balanced sound of the radio, I have to turn the bass control to 3 o'clock, and the treble to 10 o'clock.
Basically it feels as the whole frequency curve is tilted, little bass and too much treble...
It is not just in relative terms, the sound IS thin and tinny. There are no other problems with the CD-changer; no skipping or reading problems.
Any input is much appreciated!
/Alexander from Sweden