Hi, I have a very small room (8'x8', 6' tall) . I have tried acoustic treatment, but frankly, with this room I think I'd probably have to make it completely dead. That would require even more treatment than I've already tried. I got rid of that because, frankly, 2 4" rockwool panels on each wall and two corners with floor to ceiling bass traps was too much for the room. And there's no room for any treatment on the ceiling. I have been getting by with an LDC close mic'd(Oktava 319 or MXL 990), but frankly, I think that a dynamic would be better at rejecting anything in the room, if I can find one in a price range that works ($100 or less). I also think a $100 dynamic would probably be a better quality mic than most $1oo condensors, especially for this specific room/circumstance, if I can find one that suits the application. As an aside, I have these two condensors, but when it comes to recording vocals, I stick with an SM58, as I believe I get better results. I also have an old Shure 515SB. If either of these two mics are suitable for acoustic guitar in a Country or Contemporary Gospel application, in a mix with piano, electric guitar, and bass, please chime in with that as well.