The SM57 is the American standard for snare, guitar amps, and brass. The MD 421 is the German standard for tom drums and broadcast voice. Both are dynamic. Both are everywhere.
If you have a tight budget and need general utility: get the SM57.
If you record a serious drum kit: get the MD 421.
If you mic guitar amps regularly: get the SM57.
If you want a broadcast dynamic with character: get the MD 421.
If you need to buy ten mics for a venue: get the SM57.
| Shure SM57 | Sennheiser MD 421 II | |
|---|---|---|
| Type | Dynamic, cardioid | Dynamic, cardioid |
| Price | ~$110 | ~$400 |
| Built-in EQ switches | No | Yes (5-position bass roll-off) |
| Top end | Smooth presence rise | Brighter, more aggressive |
| Best on | Snare, guitar amp, brass | Tom drums, broadcast voice |
| Released | 1965 | 1960 |
| Country of build | USA | Germany |