Hey guys. I'm thinking about going to a preamp/power amp rig instead of an all in one amp. I'd like to do this in order to have a variety of preamp options and a reliable hearty power source. Do I need to know anything before going this route or is it as simple as plugging a pre into a power amp and going to town? Also, in solid state power amps, am I going to notice much difference if any between power amps in terms of tone?