The modulation wheel is set at minimum. One other forum suggested that 2 voices may not be a good fit. They suggested I test different voices...pianos with strings and see whether or not there is any conflict.
Again, the T1 does not display this higher frequency distortion/noise.....and the noise is not deafening by any means. The sound is not clean (the only comparison are the acoustic SA guitars that sound awesome).
And, no offense. I have made some idiotic errors in the past. I hope I am not doing something stupid that is leading to this issue.

Bob