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Showing 1 of 25 conversations about:
Koss Pro4S Headphones
AlexAltorfer
4
Jan 3, 2018
It is noteworthy that the Koss Pro4S isolation is nothing short of superb. It isolates better than the Audio Technica M50-X. Check Innerfidelity test results. I use them at work in a very very noisy environment, and the seal is extraordinary. They are also built like a tank and appear to be extremely durable. I must mention my Koss TD60 still works after 30 years.
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