I have a Peavey Bravo, a 2xEL84 amp that claims 25 watts. But it's just not very loud at all. i like the tone it has before the power section really begins to get nasty, which is about 1/2 way on the master. So i was wondering what other tubes i could mod it to use that would make a considerable difference in volume and what things i need to consider. The current plate voltage is 388. (seems high for El84's doesn't it?) I'd really like to be able to leave the PS as is if possible, tho i realize thats probably not gonna happen. I was thinking about making some adapters instead of re-wiring the sockets because the sockets are circuit board mounted and different sockets would be torture to impliment. But the important things i need to know is what i need to know such as what tube would work and get a good volume boost with the least amount of work, how to determine if the PS has enough current, what plate voltage i need for the new type, etc. In fact, if someone can just give me a rundown of everything i need to consider and whether there even IS a tube type i'd be able to impliment that would get me a considerable volume boost. And yes, i have considered speakers and am considering a 103db Eminence Red Fang. But i don't think that will get me there alone.