cypher labs theorem 720 dac

  1. amirm

    Review and Measurements of Cypher Labs Theorem 720 and Fiio Q1 DAC and Headphone Amp

    This is a detailed review, measurements and comparison two portable DAC and headphone amplifiers: the Cypher Labs Theorem 720 and Fiio Q1 DAC. The Theorem 720 is on kind loan from a member. It is a circa 2013 product and quick look on third-party sellers on Amazon shows a retail price of...
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