Sennheiser MD 421
Sennheiser · 1960
The MD 421 is a 1960 cardioid dynamic mic with a 27 mm diaphragm, 30–17,000 Hz ± 3 dB response, portless closed housing, and hum-compensation coil. Still in production. Over 500,000 units sold.
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Sennheiser MD 441
Sennheiser
A purpose-built dynamic mic from 1971 that prioritises rejection, bass control, and electromagnetic immunity over sonic versatility or modern convenience.