And the solution...
Sound got better and had not been a problem until a few days ago. To me it sounded like a mono signal with one channel out of phase (not possible, I know). Test bass would not even align left and right. The left speaker had the bass 2' to the right. The right speaker had the bass center stage. Out of phase went way LEFT - instead of right as above - and pinpointed just behind the speaker.
I've been shuffling components and have several coaxial cables. One of them is really tight and difficult to force on - nearly impossible. Vision is poor and space is tight as I'm working between the wall and back of stereo (I have more excuses if I need them...;) The cable was forced on hard, but still only about half way on. Really pushed to get it in a bit further and PRESTO - everything came into alignment and I had great music again.
In all my audiophile years never had this happen - and it is so obvious. Perhaps more interesting was my brain trying to justify this terrible and almost mono sound coming out of the speakers. I thought it wasn't correct, but questioned my hearing, the room, switched amps, etc. and almost excepted it as just bad sounding speakers - even though I was quite happy with them before.