Re: Can the Duncan SFX-03 do cleans
Yes, it is a preamp pedal, but it does not have a cab emulator built into it so you need at least that to run to the board directly. I would suggest if you are thinking it direct to the board with no other amp, you would probably want to have an eq in the chain (after the pedal) as well and a cab emulator (yes many of these are often eq based as well, others are not so much - Palmer, Microcab, etc).
If that is taken into account, yes it will do cleans.