I've got an early 70's Ampeg V4B... but I'm stuck in a friggon dorm room. I really need to get it down to 50Watts, because I want to push it just to the point of distortion without it having to get really loud. Is there a way I can just pull out tubes? Or do I need to do some sort of re-wiring along with removing tubes? If anyone has experience, lemme know. If it makes a difference, they're 7027's. Thanks!