Sennheiser MD 421 II

Dynamic Cardioid Microphone with High SPL Capacity and 5-Position Bass Roll-Off Switch
Sennheiser MD 421 II image 1
Sennheiser MD 421 II image 1
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Sennheiser MD 421 II
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One of Sennheiser's best!

One of Sennheiser's most popular microphones! It's the MD 421 II's versatility that has made this mic so widely-acclaimed. Its ability to handle high pressure levels makes it a natural for guitars and drums, but that's just the beginning. The MD 421 II's full-bodied cardioid pattern and five-position bass control means it's an excellent choice for most instruments, as well as group vocals, or radio broadcast announcers. One listen and you'll know why it's a classic.

Sennheiser MD 421 II at a Glance:
  • Cardioid mic with outstanding performance in diverse recording and live situations
  • Excellent feedback rejection and 5-position bass roll off to virtually eliminate proximity effect
  • Exceptionally sturdy design with dust-resistant inner chassis
A cardioid mic for a host of applications!

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.

Feedback rejection and bass rolloff

The MD 421 II's cardioid pattern offers outstanding feedback rejection, making it an excellent choice for live situations or recording environments where bleed from other instruments may be an issue. And the five selectable bass roll off settings control proximity effect, so you can use the MD 421 II in close-miking situations and still get clean, clear response with no unnatural bass boost.

A sturdy, reliable mic

The MD 421 II has a glass composite housing and hardened stainless steel basket for rugged and durable performance in the studio or onstage. The sound inlet basket is refined steel for capsule protection. When you consider the lifetime performance and versatility of this mic, it's easy to understand why the MD 421 II is world-renowned for quality and value!

Sennheiser MD 421 II Features:
  • Glass composite housing and hardened stainless steel basket - rugged and durable
  • Five position bass roll-off switch - compensates for proximity effect
  • Frequency response 30Hz-17kHz
  • Effective feedback rejection
  • Clear sound reproduction
  • Acoustic components enclosed in inner chassis - reduced sensitivity to dust and humidity
  • Internal bass tubes help deliver accurate low end response
  • Handles exceptionally high sound pressure levels
  • Mic clip included
The Sennheiser MD 421 II: a pro mic that belongs in your collection!

Additional Media

MD 421 II Spec Sheet
MD 421 II User Manual
Studio Microphone Buying Guide
Tim Timmons shares his Journey of Faith and Music
7 Tips for Guitarists Using In-ears
How to Choose a Great Microphone
How To Mic Drums for Recording, Part 3 — Multiple Microphones
How To Mic Drums for Recording Part 2 — Four Microphones
How to Get a Great Guitar Sound with Sennheiser Microphones
How To Mic Drums for Recording, Part 1 — Two Microphones
Happy Birthday!
Special Price on the Legendary MD 421!

Tech Specs

Microphone Type Dynamic
Polar Pattern Cardioid
Frequency Response 30Hz-17kHz
Output Impedance 200 ohms
Color Black
Connector XLR
Weight 0.85 lbs.
Included Accessories Mic clip
Manufacturer Part Number 000984

Customer Reviews

Based on 39 reviews
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Instant Improvement

We'd been using SM57s to record the drum kit. These instantly changed the sound we were getting. Went from being a flat, somewhat dead sound to something with dimension and life.

I love my 421!

This is my first choice dynamic every time. It sounds great on anything you put it in front of. And, it's a tough trooper. I bought mine used, very used. It has dents in the grill, the black paint on the grill has almost completely flaked off, and part of the body is cracked to the point that I had to super-glue the mount to the mic (I recommend you just go ahead and glue the mount into place. The mounting method is the one thing that bothers me about this mic. Just ask anybody who has used one; they'll tell you the mount isn't very good). But even with all of that abuse, it sounds great. SM 57 letting you down? Use the 421. I still use 57's, but that's out of necessity, not choice. I have two complaints about this mic: the mount system, and that I only own one.
Music background: Recording Engineer

Best all-around/desert island mic.

This would be my desert island mic. It can record just about anything well.

Best dynamic mic purchase I've made.

I usually record with alot of condesers and ribbons, but after picking up the 421 and making the rounds with Most dynamic mics just sound to muddy and in need of eq(for my tastes). This mic makes the sm57 sound like a toy. I love the crisp highs that you get from it that normally aren't found in dynamics. Get yourself one or five of these....your recordings are asking for it.
Music background: Recording Engineer, pro musician, and Independant producer.

My go-to dynamic mic

This is without a doubt my favorite dynamic mic. It sounds great on acoustics, electrics, vocals, toms, etc. The five way bass rolloff really lets you tailor the sound for your needs. It has a nice presence and articulation, and the ability to roll off the lows really helps get great tones out of normally boomy instruments. I have rarely found a dynamic that I like on acoustic guitar, but this one really shines in that capacity. You need to get this mic. You won't be disappointed.
Music background: Guitarist, Live Sound and recording Engineer

Sweetwater Advice

Stuart Niven

Listen to some of your favourite records, the MD 421 was probably there in the studio, helping the masters make history, on toms, guitar, and bass cabinets. Able to withstand the levels and pressures of nearly any musical source, in the studio and on the road they are built to perform. The MD 421 II is a go-to mic and one that you need in your collection if you are recording bands and instruments.

Nick Schenkel

The MD 421 is THE mic for getting a professional sound out of tom toms. It is also at home delivering warm, rich tones on guitar and bass amps. The mic itself is built like a tank, and is more than capable of withstanding the tortures of energetic drummers and the distress of life on the road. The only downside is that once you own one MD-421 you will want to get a couple more.
See also: Dynamic Mics, Sennheiser, Sennheiser Dynamic Microphones, Sennheiser Dynamic Microphones