Any comments on Peltor X4A? They are much thinner, but only reduce 27dB. Strange... | Hacker News

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blub on June 23, 2015 | parent | context | favorite | on: Just Wear Headphones

Any comments on Peltor X4A? They are much thinner, but only reduce 27dB. Strangely in Europe they claim 33dB.

JonnieCache on June 23, 2015 [–]

>Strangely in Europe they claim 33dB.

The standards of measurement are likely different. Measuring "volume" (sound pressure level) is a very tricky business.

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