MD 421-II

Sennheiser Star Rating

5.0 (1) Reviews

A legendary cardioid mic with clear sound reproduction. Easy handling due to its directivity. For most recording conditions and broadcast applications
$ 519.00
excludes taxes – free shipping
Article No. 000984
MD 421-II

Sennheiser Star Rating

5.0 (1) Reviews

$ 519.00
excludes taxes – free shipping

The MD 421 II is one of the best known microphones in the world. Its excellent sound qualities enable it to cope with the most diverse recording conditions and broadcasting applications. The five position bass control enhances its 'all-round' qualities. Colour: black, sound inlet basket: refined steel, black.

  • Rugged professional microphone

  • Five position bass roll-off switch

  • Effective feedback rejection

  • Clear sound reproduction

  • Easy handling due to pronounced directivity

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Sennheiser Star Rating

5.0 (1) Reviews

100.0% of Reviewers Would Recommend this product to a friend

  • Mela

    Sennheiser Star Rating

    Great for a retro sounding hi-fi album!

    Recored a 50's sounding Christmas album and on the bass, we used a Sennheiser 421! Ideal. See & hear here!


    Captures sound without changing it


    I would recommend this to a friend.

What's in the Box
  • 1 MD 421 II
  • 1 microphone clamp for 3/8" thread
  • Accessories for MD 421-II (984)
    Case 340x125x60mm, black

    Case 340x125x60mm, black

    Case for MD 421 microphones

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    MD 421 CLAMP, BLACK MZA 421

    MD 421 CLAMP, BLACK MZA 421


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  • Does the MD 421-II require 48V Phantom Power?

    The MD 421-II is a dynamic microphone and does not require 48V Phantom Power to operate.

  • Will the presence of 48V Phantom Power affect the MD 421-II?
    The MD 421-II does not require 48V Phantom Power to operate however the presence of 48V Phantom Power should not adversely affect the operation of the MD 421-II.

  • What is the maximum Sound Pressure Level (SPL) for the MD 421-II?

    It is a common saying that dynamic microphones just have no maximum SPL.

    This saying is not technically exactly correct but for every day use of dynamic microphones you will not find gain limitations. At SPL levels above 160 dB some mechanical problems might occur (for example the voice coil might crash onto the magnet) but these SPL levels are very hard to find in real world.

    Here at Sennheiser we use dynamic microphones for distortion measurements on loudspeakers at very high sound pressure levels. At Sennheiser we have measured the SPL and THD inside a large 2" driver/horn combination with a MD 421. The max SPL this combination was able to produce was 150 dB and the THD level recorded by a MD 421 was below 1% (produced by the driver not by the mic)

    So as a conclusion we can state the MD 421-II has no maximum SPL limitations for practical use. However if using dynamic microphones at high SPL levels a user should be aware that the very high voltage (up to several volts) delivered by the microphone might cause problems when connected to mic preamps.


  • Spec Sheets
    • Product specification - MD 421-II (330 KB) Download

  • EU Declaration of Conformity
    • EU Declaration of conformity MD Series (230 KB) Download

  • Instruction Manual
    • Instruction manual - MD 421-II (1.8 MB) Download

  • High Resolution Images