Been thinking about acquiring a fender 4x10 valve guitar combo amp to run in a bi-amp setting. Should I: Swap the speakers for eminence bp102's, just leave the stock speakers in and run the combo mic'd at a lower volume, or possibly run the cabinet with two bass speakers and two guitar speakers? I'm thinking the 60 watts from the deville, 45 from the super reverb or 50 from the bassman might sound weak through the bass speakers rated for 200 watts. The 2/2 configuration might be good because I'd get the gnarly tone from the moving guitar speakers and hopefully a more smooth delivery from the bass speakers blending. Someone please let me know if there is some basic principle of physics that renders this idea useless. If this is possible I would experiment with running the speakers on separate sides or in an X pattern depending on what and where I would want to mic or if I would want to mic at all. Any input would be appreciated!