Just an update for my Epiphone output,
I've run two cables, the sound is great but I'm not sure the stereo is good as the "real stereo" or not ???
I guess inside they routed the piezo pickup to one hole and the other pickup type (may be resonator ?) from different location to the other hole. The default result ends up with one channel sounds more bass/ but less high frequency than the other. However, I can also play with the knobs and the slider to change the sound until I like it,
Now comes up my silly question
I wonder if we have some kind of user manual or any document describes the function of those knobs and slider of that pre-amp, and also the electric wiring diagram of the guitar?