Hi All, I have a 412VS that I use with my Vetta II head, but i recently purchased an Orange Jim Root Terror which sounds awesome through it. My only problem is, it only has one channel. So my question is: Is it possible to run my Vetta II through two of the speakers for clean tone and my Orange Jim Root Terror through the other two for the dirty tone? I know the cab is stereo so I'm assuming that means top two speakers are separate from the bottom two... If so, any ideas how? Thanks for your help!