I picked up a cheap Peavey Bravo 112 early in the year(wonderful amp)and am working towards improving it a bit. A buddy built me a custom cab to start. Next will be tubes and a speaker. My immediate question is regarding tubes. It has EL84’s and 12ax7s. I think original 12ax7 and Ruby EL84’s. I know zilch about tubes. What I desire, is as much headroom and as clear a tone that this amp can produce. I’m reading up on speakers but tube technology is out of my league. Any input welcome.