Mo, when I said that your previous conclusions were confirmed, I meant your belief that you had more than enough clean power for your use. Clipping as the level went over 200 watts doesn't change that. By the way, a quick slew rate calc(6.28 x frequency x peak voltage)/1,000,000, indicates that at 50Hz and that power level about .01 V/microsecond is adequate. Modern equipment typically has rates of 10V/microsecond or more and has a slew rate far more than adequate for the full audio range.

-----------------------------------

Enjoy the music, not the equipment.