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Looking for a microphone boom arm, but how do they work?
(lemmy.world)
This is a most excellent place for technology news and articles.
I think you're referring to shock mounts. These aren't generally one size fits all, you'd need to find one that supports your mic. The screw connection from the shock mount to the boom arm is pretty universal though (and if not universal, usually adaptable)
For the AT2020, you may want to consider something like the AT8458a.