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About this gear
The PSB M4U 9 is PSB's flagship headphone, positioning itself as the premium expression of the M4U line with enhanced build quality and sonic refinement backed by decades of loudspeaker engineering expertise. Aimed at professionals, audiophiles, and critical listeners willing to invest in scientifically validated audio performance.
About PSB Speakers
PSB Speakers has been quietly building some of the most scientifically validated loudspeakers in the world for over half a century. Founded in 1972 by Paul Barton in Pickering, Ontario, the company is distinguished by its deep relationship with Canada's National Research Council (NRC), where Barton ...
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