Surprised by the outcome of this experiment. I always found that my Pathfinder 10 never took gain very well. So I tried quite a few things. Now here is what I've come up with: replaced the stock speaker with a 8" from a dead G-Dec jr (more full range and flat) shorted out C6 for more low end Jumpered from the junction of R9/R10 to the junction of R13/14 (bypassing the EQ) The result is a fairly flat low wattage amp that takes my Zoom G1on very well. My Zoom G3xn sounds not as good through it (amp sims anyways). So the G3xn will be off-loaded. Now I have a simple rig. I like the limitations imposed by the G1on in terms of only having 5 slots, enough to try stuff with, but not too many to go overboard. I also like the Interface of the unit as well, simple and straightforward, every amp has gain/bass/mid/treble/presence and cabinet. The kicker I found out is, for my setup, to use the cabinets but keep the output type to combo amp. Anyone else Frankenstein their small amps into something completely different using the original circuitry?