KOSS Pro4AAA Titanium Headphone


Koss shows us the PRO4AAA Titanium which is designed for the broadcast professional. It features titanium coating on 2 mil mylar diaphragms for a frequency response of 10-25,000 Hz. The Pro4AAA Titanium comes with a coiled, single entry eight-foot cord, and 3.5mm plug with 6.3mm adapter. It is now selling at $149.99



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