i owned a pair for a while, and never liked them on anything. they were harsh on every acoustic instrument i tried them on, except for acoustic guitar, and they were thin as a main stereo pair. there are many better choices in LDCs for that money, IMO. the good neumann mics include the U67s, U89s, tlm170s, U47s, m50s, km84s, km54s, and sometimes the U87s. the km140s and 150s have their applications, but never cut it for me as all-around mics.