Thank you for the review! The Atrium is truly an exceptional headphone. Though via my setup--Accustic Arts Player II, Roon Nucleus Plus, Mola Mola Tambaqui, DENAFRIPS Pontus II, LTA Z10e--the treble was incredibly reminiscent of electrostatics! In truth, I was blown away by the comparisons offered via the Z10e. In fact, several electrostatic headphones could not compete with the air, ambiance, and extension of the Atrium's treble! This was, of course, a stunning discovery, that I was not prepared for. And I would agree that the bass and midrange are also superb. I'll have a review shortly. Best.
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