34 was a bit difficult to deal with at the beginning, but now i have found my settings:
Power: 6
Presence: 4
Bass: 7
Middle: 5
Treble: 4
Master: 4
Preamp: 7
Just had the AFD a few days .. i'll try these settings when I come home.
I would guess the #34 setting would have to be adjusted to whatever guitar you are using as well.
I will try to record something with the #34 using a backingtrack .. that would probably show it's true potential.