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Koss Porta Pro – The Legendary On-Ear Headphones

The Koss Porta Pro headphones have achieved legendary status among audiophiles since their release in 1984. Here is a comprehensive look at why these affordable on-ear headphones have stood the test of time.

Key Features

  • On-ear, open-back design
  • Foldable steel headband with leather cushion
  • Oxygen-free copper voice coils
  • Frequency response: 15-25,000 Hz
  • Impedance: 60 ohms

The Porta Pro utilizes an on-ear, open-back design for a natural and spacious soundstage. The headphones contain large elements that allow your ears to breathe and don’t block out ambient noise. The foldable steel headband with leather padding offers durability and a comfortable fit.

Sound Quality

The Porta Pro delivers excellent sound considering its affordable price point. The open-back design provides an airier, less closed-in sound compared to closed-back headphones. The sound has been described as clean and detailed with nice separation. While bass is present, it’s not overbearing or muddy. The highs are crisp without being harsh. Overall, the Porta Pro offers a fun and engaging listening experience.


In addition to great sound, the Porta Pro is known for its durability. The steel headband allows it to take bumps and drops without damage. The simple on-ear design lacks any unnecessary parts that could break. Users report getting years or even decades of use out of their Porta Pros.


At around $40, the Porta Pro offers tremendous value. The sound quality, comfort, and durability rival headphones costing much more. For budget-minded audiophiles or those seeking their first high-quality headphone, the Porta Pro is hard to beat.


With its natural sound, longevity, and affordable price, it’s no wonder the Porta Pro remains popular after all these years. While flashier new models come and go, Koss’s legendary headphone continues pleasing music lovers to this day.


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