Sennheiser
MD 21-U
Dynamic · Omnidirectional · 40–18,000 Hz
- An omnidirectional reporter's dynamic that has been in the catalogue since the 1950s.
- Omni means no proximity effect and no handling-angle problem — point it anywhere near the mouth and it sounds the same.
Frequency response
No response curve yet.
MicSense only draws a curve traced from a graph the manufacturer actually publishes — it never estimates one from the microphone’s class. Sennheiser publishes figures for the MD 21-U but no response graph, so the numbers are in the spec table below and the chart stays empty.
Polar pattern
Generated from the first-order directivity formula for omnidirectional. It illustrates the pattern type — it is not a measurement of this individual model.
Specifications
| Manufacturer | Sennheiser |
|---|---|
| Model | MD 21-U |
| Type | Dynamic |
| Form factor | Handheld |
| Polar pattern | Omnidirectional |
| Frequency range | 40–18,000 Hz |
| Sensitivity | 1.8 mV/Pa · ≈ -54.9 dBV/Pa |
| Max SPL | — |
| Self-noise | — |
| Impedance | 200 Ω (nominal) |
| Connector | XLR3M |
| Powering | None (dynamic) |
| Weight | 295 g |
| Price tier | Mid |
| Introduced | — |
Every figure above is from Sennheiser’s own published datasheet for this model — see the datasheet. A dash means the manufacturer does not publish that figure; it does not mean zero.
What it gets used for
- Broadcast
- Lectern / podium
MicSense tags microphones by the job on a live stage, not by studio category — so you can filter for “kick in” or “monitor vocal” instead of working backwards from “large-diaphragm condenser”.
Compare it against the alternatives.
MicSense lets you put up to four microphones side by side — spec table, overlaid response curves and polar diagrams on one screen. Free with a free Squaresmile account.