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Black over-ear headphones with padded leatherette earcups and flexible sling headband

Koss

Koss UR20 Over-Ear Headphones, Black

SKU CH-CW8G-WT38Y MPN UR20

Closed-back over-ear headphones with 30 Hz–20 kHz response, 32-ohm impedance and 97 dB sensitivity for DJ and studio use

  • TypeStereo / DJ
  • ColorBlack
  • Frequency Response30Hz-20KHz
  • THD<0.3% Total
  • Input Impedance32 ohms
  • Sensitivity97dB S.P.L. at 1KHz
  • Circumaural closed cups isolate sound for focused listening
  • 30 Hz to 20 kHz frequency response covers the full audible range
  • 97 dB sensitivity at 1 kHz delivers loud output from portable devices
  • 32 ohm impedance suits phones, controllers and studio gear alike
  • 8 ft straight single-entry cord with 3.5 mm and 6.3 mm plugs for flexible connection

DJ monitoring and casual listening

The Koss UR20 is a closed-back circumaural headphone built for DJ monitoring and everyday music listening. Its 32 ohm impedance and 97 dB sensitivity allow direct connection to portable players and professional mixers alike. The 8 ft straight cord with single-side entry keeps cable management simple in booth or home setups.

Dual plug and flexible sling headband

A 3.5 mm to 6.3 mm adapter is included so the same cable serves laptops, phones and DJ gear without extra purchases. The flexible sling headband enables single-sided monitoring and withstands repeated folding for transport. Leatherette ear cushions seal against ambient noise while improving low-frequency presence.

Extended response with known limits

Frequency response spans 30 Hz to 20 kHz with total harmonic distortion below 0.3 percent, delivering clear treble and defined bass for tracking and mixing. The 32 ohm load is easy for most sources to drive, though very low-output devices may not reach peak volume. Isolation is passive only, so loud environments will still bleed into the cups.

Highlights

  • Circumaural closed cups isolate sound for focused listening
  • 30 Hz to 20 kHz frequency response covers the full audible range
  • 97 dB sensitivity at 1 kHz delivers loud output from portable devices
  • 32 ohm impedance suits phones, controllers and studio gear alike
  • 8 ft straight single-entry cord with 3.5 mm and 6.3 mm plugs for flexible connection

Specifications

BrandKOSS
ModelUR20
Part NumberT55959
TypeStereo / DJ
ColorBlack
Frequency Response30Hz-20KHz
THD<0.3% Total
Input Impedance32 ohms
Sensitivity97dB S.P.L. at 1KHz
Connector3.5mm/ 6.3mm
Ear CouplingCircumaural
Cord LengthStraight, single entry 8 ft cord
Weight2.5
FeaturesDynamic Element for extended frequency response
Closed leatherette ear cushion for maximum isolation and deep bass
Built for maximum durability for DJ and recording use
Shipping weight0.91 kg
Package size311 × 259 × 198 mm

Questions about this item

How often should the leatherette ear cushions be replaced on the UR20?

The closed leatherette cushions are built for DJ and recording durability; replace them when the seal degrades or comfort drops, typically after heavy daily use.

What limits the UR20 during long mixing sessions?

The 32-ohm impedance and 97 dB sensitivity cap maximum clean output before distortion rises above 0.3 %.

How warm do the UR20 get after all-day wear?

The closed circumaural design traps some heat around the ears, but the lightweight 2.5 oz frame keeps pressure low during extended use.

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