The Helix has 2 inputs. My acoustic guitar has 2 pickups: a magnetic and a soundboard transducer (both passive).
1) What cab/amp sim would you use on an acoustic guitar?
2) Can inputs A and B be summed (merged)? I see the examples in the manual, but those are when a single signal is split, then merged. I don't see an example of merging inputs A and B.