Greetings! I'm kind of new to home recording and i have a few questions. Im planning to get myself a Shure SM 57 mic but I've been told that I should also get a preamp. ??? Is a preamp, the thing on a instrument amp where you have the guitar input, headphone input and CD input? If yes, then how is the whole thing going to work? Mic > cable > preamp... and what next? Any ideas. Sorry for the bad English.