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Koss Porta Pro Classic On-Ear Headphone

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Koss Porta Pro Classic On-Ear Headphone

  • The ultra portable on-ear headphones

  • Comfort Zone setting on temporal pad for comfortable secure fit

  • The ultimate active headphones with a collapsible headband design for protective storage

  • Dynamic element for extended frequency response

  • Oxygen-free copper voice coils deliver deep bass and signal clarity

  • Includes a convenient carrying case for protective storage

  • Covered under the Koss Stereophones Limited 1-Year Warranty



The acclaimed Koss Porta Pro has set performance and comfort standards for personal listening worldwide. Designed for those with refined musical taste, the Porta Pro continues to be one of the most popular headphones around the world.

Known for its high-level of comfort, the Porta Pro has adjustable temporal pads to relieve pressure on the ears. Its lightweight, open-air cushions for hear-through sound keep listeners aware of their surroundings while delivering exceptional sound. The oxygen free copper voice coils and dynamic elements allow the Porta Pro to deliver rich bass and a remarkably wide frequency response.

Whether you’re listening at home or on the go, the Koss Porta Pro delivers all the excitement of a live performance.

Technical Specifications

Additional Information

Colour Black
Warranty Not applicable
Product Weight (g) 59
Availability Discontinued
Product Type Headphone
Style/Type On-Ear (supraaural)
Driver Configuration 1-Driver (Dynamic)
Frequency Response (Hz) 15-25,000 Hz
Impedance (Ω) 60 ohms
Sensitivity 101 dB SPL/1mW
Headphone Design Open-Back
Microphone None
Cable Style Wired (for 3.5mm devices)
Cable Length (cm) 120cm, dual entry
Additional Tech Specs Plug: 3.5mm straight
User Reviews

Customer Reviews 3 item(s)

Good Headphone for its size
It's pretty bassy! the vocals aren't quite right. In conclusion, this headphone is more for pop music? not for acoustic i guess... but it's just my opinion
Build Quality
Value For Money
Review by JY / (Posted on 15/04/2015)
Good sounding for the price
Bought on the the strength of reviews from CNET and the like. Previous headphones were Sony MDR-range, so roughly around the same price. Initial impressions: substantially more bass than previous Sony's, generally richer and more full-bodied. Fantastic for classical music listening, but can't really comment on other genres of music. Pros: Warm, rich. Great value. Cons: Those who are looking for more pentrating treble may be disappointed. Looks are distinctly retro - no street-cred. Not that sound insulating since it is an on-ear headphone.
Build Quality
Value For Money
Review by Thean Yen / (Posted on 15/04/2015)
Portable and naturally powerful headset to carry around
Pro: Enriching sounding for any genre fed to this unit.
Cons: Since 2003, can't find proper replacement for music performance at such price point.
Build Quality
Value For Money
Review by Vincent / (Posted on 09/04/2015)