The Sennheiser MD421 II is a long recognized studio standard on drums (a favorite for toms and kick drums), guitar cabs, bass cabinets, vocals, horns, and actually, a ton of other uses. Every studio should have at least one (but more like 4 or 8 of them). The five position bass roll-off switch helps to tailor the low end of the signal and compensate for proximity effect, making the MD 421 II one of the most versatile dynamic microphones ever created. We recommend them unreservedly.