Inspired by the classic designs of the 1970s, the GSL Phoenix is the latest example of a superior suppressor. Emerging from the legacy of the old MK-9K, this device achieves an incredible 40-decibel ...

This meta-silencer design leverages acoustic black hole and rainbow trapping effects to effectively reduce low-frequency noise BUSAN, South Korea, Sept. 12, 2024 /PRNewswire/ -- Chronic low-frequency ...

Pusan National University researchers developed a novel meta-silencer that reduced broadband low-frequency noise by leveraging the acoustic black hole and rainbow trapping effects, resulting in ...