Yamaha Pacifica 821 with DiMarzio Evolution bridge =>
Kemper (rig KM-ANDROMEDA, no effect on) =>
Engl Ironball poweramp =>
Yamaha Pacifica 821 with DiMarzio Evolution bridge =>
Kemper (rig KM-ANDROMEDA, no effect on) =>
Engl Ironball poweramp =>
Mesa 1x12 Mini Rectifier cab
Did you mike the Mesa cabinet for the sound sample?
The first part fo the clip shows a lot of aliasing - the second is fine.
remember each digital distortion creates aliasing - it's only the question how much ...
And I think the KPA works fine.