Το c451 δε νομίζω να κάνει γι' αυτό που θέλει.
Από το site της akg:
The C 451 B is an excellent tool for accurately capturing signals rich in transients such as drums, instruments with a percussive sound, acoustic guitar, or for overhead miking.
http://www.akg.com/site/products/powerslave,id,223,pid,223,nodeid,2,_language,EN.html