KM 253
Neumann Discontinued

KM 253

The KM 253 is an omnidirectional small-diaphragm miniature microphone, a special version of the KM 53 made for the broadcast industry. It was fitted with a new, larger plug to improve immunity to radio-frequency interference.

  • Omnidirectional small-diaphragm miniature microphone
  • Special broadcast version of the KM 53
  • New, larger plug for increased RF immunity
  • Listed as 'HF proof' on the maker's historical products range
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Description

The KM 253 is a historical Neumann miniature microphone with an omnidirectional pattern and a small diaphragm. It is a variant of the KM 53 that was developed specifically for broadcast use.

The main change from the KM 53 is the connector. A new, larger plug was fitted to increase RF immunity, which is why the model carries the designation 'HF proof'.

The product page lists sections for description, data and diagrams, accessories, downloads and order information, but the available text gives no technical figures such as sensitivity, frequency response, noise level or power requirements.

Specifications

Brand
Neumann
Model
KM 253
Category
Studio › Microphones

Audio

Polar pattern
Omnidirectional
Transducer size
Small diaphragm

Connectivity

Connector
New, larger plug for increased RF immunity
RF immunity
HF proof

Physical

Type
Miniature microphone
Base model
KM 53
Intended use
Broadcast industry
Product range
Historical

Data: neumann.com; photos: Neumann product page · updated 2026-10-12 · Found a mistake? Write to us