It's entirely likely that I am completely misunderstanding the entire concept of stereo output, and thus why I'm not finding any information online about it. Let me set the scene:
I have an HX Effects which I play through my Fender '59 Bassman. The Bassman has 4 inputs (2 Normal and 2 Bright). Is it possible to send 2 signals to the same amp? The application I imagine would be to have one side as a clean 'bass' channel using the octave effect etc., and the other side acting as the 'guitar' channel with dirt, etc. Is this possible? And if so, how would I go about setting it up? All I seem to be able to find is how to send the HX Effects to 2 amps, which tells me that maybe it's not possible.