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by amplicons4ever 1543 days ago
Check out Etymotic Research--they make all kinds of high-end auditory systems, including earplugs[1]. I've been very happy with their Ety-Plugs and also have a set of their ER20XS's [1].

They're relatively inexpensive ($16-25 USD) and work like a charm. They're amazing at reducing the volume very evenly across the frequency range without distorting the sound quality or balance, useful for everyone not just professional performers. You can hold a normal conversation in a really loud environment without screaming, they're great.

[1] https://www.etymotic.com/product/er20xs/