I found a Shure SM57 on ebay for $60, which seemed like a good deal, so I picked it up. I hooked it up today, and to my ear it sounds really muffled with all the highs cut. I have very little experience with mikes though. What I know for sure is that my condenser overheads pick up way more highs and brightness and sound way better to me. Is this the nature of the SM57 on a snare? Or maybe the mic is faulty?