Koss Porta Pro Stereophone

Koss Porta Pro stereophones high quality sound sets a sound performance standard for portable listening. First introduced in 1984, this high quality portable stereophone set performance and comfort standards for personal listening worldwide

• Description
• Features
• Specifications

• Koss has preserved the original design and performance that made the Porta Pro a portable music icon. Designed for those with refined musical acuity, the Porta Pro continues to be the most requested headphone at koss.com. 
  
  The Porta Pro features dynamic elements that deliver exceptionally rich, deep bass and a remarkably wide frequency response to capture every nuance in your favorite movie or musical performance. The elements inside the headphones minimize mechanical distortion and ensure exceedingly accurate sound reproduction. 
  
  Oxygen free copper voice coils improve signal transmission and conduction for cleaner, clearer sound. Foam ear cushions provide an open, hear-through sound that lets you keep in touch with your surroundings and adjustable temporal pads keep the pressure off your ears. Whether you're listening at home or on the go, the PortaPro will bring the great sound and excitement of a live performance. 
  
  Built to last, the Porta Pro is covered under Koss' Limited Lifetime Warranty - the only warranty of its kind in the stereophone industry.

• • 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 Lifetime Warranty
• Frequency Response: 15 Hz - 25,000 Hz
  
  Impedance: 60 ohms
  
  Sensitivity: 101 dB SPL/1mW
  
  Cord: Straight, Dual Entry, 4ft