I've recorded more than 50,000 voiceovers. Frankly I lost count about 1986. At least 5,000 were with a MD421U. The MD421 mic has lots of applications other than studio V/O though. Bongos, bass cabs, trombones, saxes, congas and explosives come to mind. While not my #1 favorite V/O mic, I prefer it to the more widely used EV RE27 or RE20 neither of which have any personality whatsoever and frankly I've never understood how they became so popular in broadcast production applications. The MD421 has a handy EQ character selector collar around where the cable jack is located which adds a ton of versatility. For studio voiceovers it sounds adequate, but is not my #1 V/O choice by any means, that would be the LESS costly Shure SM7B. The Sennheiser does work live on stage (when set FLAT) which lots of studio mics like my favored SM7B simply won't do at all. For an announce mic into a house PA, I'd go with the MD421 because of reasonably good gain before feedback and a very controllable proximity effect and no built-in mid boost like most PA vocal mics, such as a Shure SM58, so your voice sounds more natural. I've also used it to record lots of sound effects with good results. It is nearly impossible to overload an MD421, so you can use it to record things like shotgun blasts or dragsters. An MD421 makes a great home studio or podcast mic because it is very directional, has a decent output and a good dynamic range so you can whisper and still be heard or scream all you want and it won't distort. It truly is easier to record really LOUD stuff with it than any other mic I've ever used. Drawbacks are multiple though! No shock mount available. Difficult to find a foam windscreen to fit it. The stand clip is probably the worst stand adapter design on the planet. However the mic itself is nearly indestructible and can take years of abuse or neglect and the occasional stupid episode like leaving it in the rain trying to record thunder. This is one of those mics you could use as a hammer and it would still work flawlessly. A bit cumbersome to use handheld but once you get accustomed to the heft & larger diameter it is perfectly usable handheld and is a good one-mic interview solution for radio news or interviews. The studio V/O sweetspot is really huge depending on how much proximity effect you want. I get the best studio V/O results with no windscreen using it at a 90 degree angle talking directly ACROSS the top of it (NOT into the side but across the top,) or my second choice is 180 degrees straight-on with a foam windscreen which cuts the highs. One producer told me he never saw anyone use one at 90 degrees with no foam. He liked the result a lot so I guess I taught him something. A good all around workhouse dynamic with more than one application. A great drag race commercial mic. Just always keep the shortcomings in mind and know it isn't the perfect mic. (NEWS FLASH: There is no perfect voiceover mic! But the Shure SM7B is close.) The MD421 is a good all around dynamic workhorse and a good mic to have around sometimes...but gads that clip thing...oh Lord..that clip thing.

I've used this mic for recording and live sound on acoustic guitars and vocals. Gives a nice, full-bodied sound, especially on my nasal tenor voice. Be forewarned about the clip problem.

This mic is great for mid to low range applications: drum toms & bass drums, guitar/bass cabs, etc.

The mic itself is sturdy and capable of taking a beating without any loss to its performance. The clip, however, is very fragile. The mic can detach very easily if you are unfamiliar with the clip, and the threads (where the clip attaches to the mic stand) are plastic. We've gone through half a dozen clips in the studio: I eventually got fed up and rigged the attachment onto an old metal mic clip. Problem solved.

I've worked in a few radio stations that used these mics in the production and on-air studios. I'd never use them outdoors, but they are the MOST flexible mics I've ever used. The other 2 are the SM7 and EV's RE20.

This mic is good especially on toms or guitar cabs, I've heard lots of good things about it on bass cabs or even kick drums but my one problem with it is the clip design. You really have to stay aware of where that button is when adjusting it's position because at the slightest touch that mic's going to come off that clip and fall. Great mic but with a minor flaw. Still probably worth the money though.