Download three circa 1980 Sennheiser product-sheets for the MD-421-U and MD-441 microphones:
DOWNLOAD 421-U (color 4-panel): Sennheiser421_Color
DOWNLOAD 421-U (monochrome 2-panel):SennhesierMD421U
DOWNLOAD 441: SennheiserMD441
If you have spend much time in recording studios, you are probably familiar with these great microphones. When we were kids first learning about recording, the 421 was the one ‘good’ mic that we had; we didn’t know exactly why it sounded so very much better than the assorted Shure, EV, and Realistic public-address mics that we had, but the difference was shocking. A little while later I discovered the 441, which I find to be a less-exciting sound but still incredibly useful, especially when you want a really tight pattern and good fidelity (esp. under the snare). Also good on the rack toms to reject snare and hat. Stan Coutant’s excellent Microphone Data website has a download link for more current spec sheets on these models; I thought it might be useful to offer some earlier material here.