I am currently using a borrowed pair of Samson CO2 sd condenser mics and want to spend under 500 for a better pair. I have looked at the NT5's, KLM's, C4's and whatnot but i know nothing about how they sound. Are these good choices or would you reccommend something else. Also this is unrelated but i was wondering what LCD's were (someone was talking about them as a "room" mic).