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Koss is calling on its loyal Porta Pro fans to vote on a new colorway.
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I removed diaphragms and rebuilt both drivers by hand and restored
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After 32 years, Koss finally considers color options for the Porta
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I removed diaphragms and rebuilt both drivers by hand and restored
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After 32 years, Koss finally considers color options for the Porta
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I removed diaphragms and rebuilt both drivers by hand and restored