Next time you create a profile, please try to refine that note a bit.
It seems that it pushes the distortion a bit too hard. This is not a matter of the power amp.
Also try to increase the Definition parameter in the amp section.
Have you made a studio profile as well?
Does it suffer from the same effect?
Thanks..I have found some success in the Defnition... Studio profiles are stellar..no compression..work as advertised, etc...