Sennheiser

MD 421-U

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Overall

#436 in

External Microphones

according to Reddit Icon Reddit

Sentiment score36% positive
4
3
4
Last updated: Jun 30, 2026

Reddit Reviews

Reddit IconCalciteSnapper
9 months ago

I held the same opinion until recently. I've got 2x 421 ii's and 2x 421 u's. I'd only ever used the ii's on toms and was never really stoked, even given the reputation of the mic. I decided to finally try the u's on my last session and they are decidedly better in my opinion. Totally agree that they are big and clumsy, though!

Reddit Iconm149
9 months ago

ah, ok, so yeah, I've mostly used the II, although I do recall using the U on a few occasions, although I didn't even realize I was using a different mic as I was using them for completely different things. Never miked up any drums with anything other than a II. thanks for the info.

Reddit Iconmariospeedragon
9 months ago

OG 421s sound very good, 80s SM7s sound very good, BUT I never liked the 421 MK2 to record anything with. Didn’t like it on floor tom. Not on guitar amp or blended guitar mics. Sold it with zero regrets. And then I found a 70s 421 and it is useable on about anything. SM7Bs are okay. Maybe podcasting or narration, but it’s not the SM7 mic MJ recorded with. Noticeable difference, and would tell anyone vocals, kick, or podcasting that RE-20 is better mic

Reddit IconAlternative-Sun-6997
5 months ago

I’ve tried a bunch of other things and have mostly settled on a SM57 as a “primary” mic and a MD421 as a “supporting” one, which is kind of funny since the 421 is several times the cost of a 57. But, they pick up almost everything you want, am very little you don’t, on a cab. Perfect mic for the job.

Reddit Iconitendswithmusic
7 months ago

I’d reach for an RE20 or the MD421 over an SM7b any day of the week. 421 has a built in strip that acts as a pop filter too!

Reddit Iconandrewfrommontreal
9 months ago

I have a black one. NEVER connected with its sound, and I’ve had one for 25 years. BUT the original beige ones are very nice.

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