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About this gear
The QZ900 represents Koss's higher-end closed-back offering, targeting listeners willing to spend moderately for improved build quality, isolation, and refined sound versus their entry-level lines. It signals the brand's ambition to compete in the serious listening segment without abandoning their accessible price philosophy.
About Koss
American headphone pioneer founded in 1958 by John C. Koss in Milwaukee — credited with inventing the first stereo headphone (the SP/3). Koss's Porta Pro, introduced in 1984, remains in production and is one of the most beloved headphones ever made, offering remarkable sound quality and musicality a...
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