I forgive you, for now, heh heh. You really need to read "The Complete Guide to Highend Audio", and a few back issues of Stereophile. OF COURSE THERE CAN BE LEVEL AND IMPEDANCE MISMATCHES, so try to compare the specified outputs and inputs of the components you are considering, if possible. And again, you can't just figure out what will work best ahead of time. It always takes at least some trial and error. Good luck!
Forgive me.
Forgive my ignorance O Masters of Sound and Fury. But other than sound quality, are any other factors significant when matching separates from different manufacturers? For instance, output voltage or input sensitivity or input impedance of a pre-amp when connecting to different corresponding values of another brand of amplifier? Any technical issues, simply sound, or nothing to be concerned about?