When I took the stage as the the lead vocalist and guitarist for the folk rock band I fronted in the late nineties, my go to microphone was Shure’s SM58. 90% of the bands that played the local scene had them. Why? Because we could spit on them incessantly, accidently drop them on and off the stage, back a Mack truck over them, and they would still perform and deliver great sound. And because of their durability and quality, my Shure SM58s still have a place in my studio. But after 15 years of using them, I discovered a secret about the Shure SM58 that I perhaps intuitively knew, but never really thought about.
The Shure SM58 has an internal shock mount.
Almost every other microphone I know (and I’ll be the first to admit I don’t know all of them) has an external shock mount. Take my Heil PR40 for example. When I bought it, it came with an external shock mount. No bands I knew ever used shockmounts for the SM58. Now I know why.
The Shure uses a pneumatic shock mount, or as it is sometimes called a pumping shockmount. Shure is not so concerned with side to side movement since the diaphragm moves with the microphone; they are more concerned with handling noise, stand vibrations, and in and out movement. The diaphragm mount actually pumps like a piston to absorb the vibrations. This eliminates a majority of extrinsic noise.
This is really great for the podcasting studio and for the traveling podcaster. The internal shockmount not only reduces the mic handling noise, but also means there is one less piece of equipment to lug around.
I want to say thanks to listener Todd Combs for pointing this out to me. I have have included a video below that discusses this more fully. They are focussed on Shure’s SM57, but the same holds true for the SM58.