HarmonicDyne Poseidon is a new maple accented open-back headphone featuring a 50mm nickel diaphragm dynamic driver. It is priced at $435.

Linsoul seems to be building up a head of steam with their Harmonic Dyne brand with the recent launch of their 3rd headphone project, the open-back Poseidon on Kickstarter.

We previously reviewed the Zeus which came equipped with a 50mm Beryllium driver and a slightly darker tuning.
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