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Original Message
RE: Cheap source for foam port plugs/bungs
Posted by Duster on July 7, 2020 at 00:02:31:
You selected the right type of foam, stuff. The open cell design allows the backwave to exit the port like an aperiodic vent, with enough resistance to dampen the resonant frequency and deliver more power than if completely blocked with a pair of socks. Too bad the shipping charge is excessive.