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They also feature oxygen-free copper voice coils which improve signal transmission for clearer sound.

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Pros

can handle some abuse and continue to work just fine

2 agree

Volume is decently loud

1 agrees

Comfortable

1 agrees
  • Only 3 words are allowed.
Cons

volume isn't very loud, even when turned all the way up

2 agree

packaging is extremely difficult to open without tools

2 agree

tends to pinch the ears to the head

1 agrees

band between the ear cups presses down on the head

1 agrees

mids and highs are tinny and washed out

1 agrees

bass support is weak, not very well filled out

1 agrees
  • Only 3 words are allowed.
Edit

 

The Koss KHP21v are full-sized stereo headphones with closed leatherette ear cushions and an adjustable headband to provide comfort while blocking external noise and improving bass performance.  The headphones feature anisotropic ferrite magnets which allows them to produce loud volumes even with low-voltage devices.  They also feature oxygen-free copper voice coils which improve signal transmission for clearer sound.  The KHP21v headphones have a 4 ft cord with an in-line volume control and 3.5 mm L-shaped plug plus 6.3 mm adapter.  At only 6 ounces, they are lightweight compared to other full-sized headphones and are backed by a lifetime warranty.  Like Koss' UR18s, the KHP21v headphones are designed to provide good sound while being lightweight and comfortable.  They differ from the UR18s since they have a shorter cord in addition to an in-line volume control that the UR18s lack.

Features/Specs
  • Closed leatherette ear cushions
  • In-line volume control
  • Adjustable headband
  • Oxygen free copper voice coils
  • 3.5 mm L-shaped plug
  • Comes with 6.3mm adapter
  • Lightweight (6 oz.)
  • Anisotropic ferrite magnets for high volumes
  • Frequency response: 20 - 18,000 Hz
  • Impedance: 32 ohms
  • Sensitivity: 90 dB
  • Cord Length: 4 ft
  • Lifetime warranty
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