This post is going to highlight the ribbon microphone: the neglected and underutilized black-sheep citizen of the mic locker.
If I do a session without using a ribbon mic, I get cranky. What’s a ribbon mic? Why should I care? Ribbon mics are the stepchildren of dynamic microphones. Dynamic mics such as the Shure SM57, Electrovoice RE20, and Sennheiser 421 have circular diaphragms that are coupled to their transformers. This coupling of the diaphragm and the transformer means it moves slowly, producing a gutsy but somewhat unarticulate sound. Ribbon mics work in much the same way but instead of having a circular diaphragm, they have a thin ribbon element. This ribbon is not mechanically coupled to a transformer, producing a smooth, even vibration with a faster articulation. Ribbons are totally unique. These days everyone and their cousin has a large-diaphragm condenser and a collection of dynamics, but when you break out a ribbon mic you’ll turn some heads. Contrasting the clear, bright sound of condensers with the roundness of ribbons helps bring balance to the modern digital production sound.
Back in the day ribbon mics were the standard in the 30s, producing such classics as the RCA 44 and the RCA DX77. Traditionally these microphones had a substantial high-end roll-off that resulted from the need to protect the fragile ribbon element from being knocked or damaged by a strung gust of air. These days there are quite a few choices and many of these choices are employing newer materials that are more resilient, allowing less protective material. The result? Ribbons are more articulate than ever and still produce that much sought-after smooth, round sound.
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