REFURBISHED Sennheiser MD 421-N Cardioid Dynamic 1960s is a used item in excellent condition, listed on Reverb. The asking price is £305. It is offered by Micster through Reverb. It is in our Microphones category. 24 similar listings have a median asking price of £313. Used Gear Hunter first saw this listing on 24 October 2026 and last saw it on 25 October 2026. It has been seen 3 times in our scans. Prices are converted from the seller's currency when we scan the listing, so the amount you pay may differ slightly. The seller sets shipping, and import duty or VAT may apply, so check the final cost and the item's details on Reverb before buying.
From the seller
The Sennheiser MD 421N is one of the most successful professional dynamic microphone families ever produced. More than half a century after its introduction, the MD 421 remains a familiar working tool in recording studios around the world. The 421N Version is the small Tuchel Studio version with a5 step on board filter.
SERIAL
152057
OPTICAL CONDITION
EXCELLENT
Exceptionally well-preserved example with very little visible wear.
one insignificant bump to the mesh on the lower right side of the grill
TECHNICAL CONDITION
EXCELLENT
FACTORY SEALED
The microphone is tested and operates correctly and delivers excellent performance.
INCLUDING
Custom fitted hard case
3D Printed holder with improvised locking Mechanism
Adapter cable to XLR is available but not included in the price
WHY DID THE MD 421 BECOME A STUDIO STANDARD?
The MD 421 was engineered as a serious professional working microphone. Its robust housing, dynamic moving-coil transducer and carefully developed directional acoustic system were designed for demanding use in studios, broadcasting, location recording and live production.
Yet durability alone does not explain the extraordinary longevity of the design.
why did the MD 421 become one of the most widely used and enduring microphones in recording history?
Part of the answer lies in something that is difficult to communicate through specifications alone: the MD 421 has an unusually large usable working range.
Many microphones sound wonderful at a particular distance but become increasingly compromised when moved extremely close to a source. The MD 421 behaves differently. Its sound certainly changes with distance—the proximity effect is very much part of its character—but those changes remain remarkably useful.
At moderate distances, the microphone can sound open, balanced and natural. Move it directly toward the source and the sound becomes larger, heavier and more dramatic, yet it can retain a convincing and coherent timbre.
This makes the proximity effect less of a technical problem and more of an artistic tool.
Distance becomes another way of shaping the recording.
For the engineer, this has enormous practical value. A microphone that remains musically satisfying at very close distances can be positioned directly beside an instrument, amplifier or drum while still producing a natural and usable sound. This provides excellent isolation, reduces unwanted room contribution and spill, and gives much greater control over phase relationships when several microphones are being used simultaneously.
In other words, the MD 421 allows the engineer to solve practical recording problems without necessarily sacrificing musicality.
SOUND CHARACTER
The MD 421N has a substantial, authoritative sound with excellent low-frequency weight, a clear and informative midrange and enough upper-frequency extension to retain articulation and openness.
But its defining quality is perhaps not one particular frequency response.
It is how well the microphone responds to placement.
Close placement can produce tremendous weight and intimacy without automatically becoming unpleasant or excessively harsh. Pulling the microphone farther away opens the sound and changes its balance naturally. Between these positions lies an unusually broad range of useful tonal possibilities.
This helps explain why the MD 421 became associated with such an enormous variety of sources: vocals and speech, toms and drums, guitar and bass amplifiers, brass, percussion and many other instruments.
Rather than having one narrow “correct” position, the microphone gives the engineer room to work.
To perfectly make this environment also controllable - Sennheiser gave this version the famous 5 step ring bass filter- that perfectly toggles that very same proximity Range.
ENDLESS PROXIMITY
the most remarkable quality of the MD 421 is simply how close you can get.
And because the MD 421 is a directional microphone, this ability has enormous practical value.
Extreme close placement increases the proportion of direct sound reaching the microphone while reducing the influence of the surrounding room and other sound sources. In a multi-microphone setup, the increased isolation can also make phase relationships and unwanted interaction between microphones considerably easier to manage.
The result is something particularly valuable in recording: the ability to create an immediate, isolated studio sound even in a room that is far from ideal.
This is perhaps one of the secrets behind the MD 421's extraordinary usefulness. The engineer can move closer for technical reasons—more isolation, less room, greater control—or for artistic ones, deliberately using the increasing proximity effect to create weight, intimacy and drama.
MORE THAN SOUND
The success of the MD 421 cannot be explained acoustically alone.
It combines its broad working range with robust construction, reliability and an unmistakable industrial design. It is elegant…