I'm looking to exchange my big heavy rack set up for one of these new lightweight d amp heads. I find that I really like the sound of the GK RBs and that gritty dirt found there so obviously there's the MB800 that I'm looking for. Problem is the MB is reviewed to be super clean and I don't need that. So, I'm using the RBI in my rack and that thing gets dirty. So, can you use the RBI in conjuction with the MB800?