I bought this capsule for my existing MK-101, so I can also have a small diaphragm condenser now in one package. MK012 cardioid capsule has a very balanced, very natural sound. It isn't hyped or notched in any way, just what I want for recording acoustic instruments. I like it far better than some Chineese mics I've been using in the past. So far it performed well on whatever source I tested it on. I also very much like its off-axis response. The sound gets darkened of course, but pleasantly so. I tested it on a few different flutes and was very pleased to hear how smooth the wind sound was, which is not the case with many mics.