Ok i'm not to big on these but can someone explain to me what a Pre amp and a Power amp is and what they are for? I've heard about these and i'm curious about what they are.
Basically, these are the two halves of what a guitar amplifier head is. The pre-amp does the tone shaping (gain, eq, etc...) and the power-amp magnifies the signal so that it can actually be heard through a cabinet. The two are basically a guitar head, except more "modular" because you can have lots of combinations like this that you wouldn't be able to get with just heads.