Hello all, I'd like to take the head out of this combo and, using the line out on it as an input signal to my other Ampeg combo (B3158). Essentially make it a pre. Then at shows, I'd take the whole combo and use it as a monitor for my drummer. I could always put a mini-pin to 1/4 inch adapter in the headphone out so as to disable the signal to the internal cab when I've got it unhooked. Ok that's it. This little head is a tone monster that I can't seem to reproduce through any of the rest of my gear. Oh, and I've already used the line out as an input before and it works great once I get all of the levels in check. Summary: Will it cause any damage to pull the B50-R combo head out and use it as a pre-amp?