I've bought a CAD M179 mic and an accompanying power supply. With my previous microphone, a cheapo Peavey mic that required no power supply, I was simply plugging it into the back of my Boss GS-10 and recording the clean signal using the direct/effect option (records the direct clean signal to one side of the stereo, which I can split and use on its own... I can't seem to find a way to record only the clean signal by itself using the GS-10, though.) If I'm running the CAD M179 through the GS-10 in the same manner, is it basically functioning as a preamp, or do I need to buy one?