Sennheiser MD421 IIAdvertisement Sennheiser MD421 II Dynamic Mic ($375) 5-position roll off. Cardioid dynamic microphone Freq. response: 30Hz - 17kHz AdvertisementPublished: 07-12-2014 15:44:05 by POLITUSIC | Updated: 11-12-2016 07:32:50 Go To Article: Studio Microphones: Condenser & Dynamic For Your Studio