I think the design approach to this amp is flawed !
there are 2 switchable channels:
channel one has non distortion effects and no amp modelling.
ok, so its logical to use channel 1 as the clean channel, but unfortunately channel 1 has no mid range control, so you cant get the clean sound to be finally tuned !
channel 2 has got the lot :- mid range control, amp modelling and effect also. if only some of this had also been implemented in channel 1 !