Hello, my name is Chase and I would like to know how to make professional-sounding (what I mean is NO FEEDBACK) recordings. Recordings without hissing and other annoying noises. I have a cheap mic and a used SHURE mic already, along with all the instruments I need, but when I try to record, there are annoying hissing sounds with BOTH mics. I a newb, so I know little about this. Would a preamp do the trick? And if so, is there a way I could build it? You see, I am good with building things and would like to build all that I can for my recording. Thank you, - Chase H.