Thanks. FWIW, I get enough grief from a few long term forumites (problem solved with the ignore feature) and didn't figure, for my efforts, I should receive grief from someone I was trying to help. Sorry to read the new speakers haven't worked out and glad to read putting the old speakers back in fixed the hearing fatigue problem.
I understand regarding your hearing fatigue as a DSP, when I use headphones, after about an hour will cause me hearing fatigue. When I turned the DSP off, the fatigue is immediately relieved. Hearing fatigue is no fun and yes, hearing fatigue does ruin the listening experience.