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Koss CS100K on-ear headset with boom microphone, black finish, 8 ft cord

Koss

Koss CS100K headset, 30-16KHz, 8 ft cord

SKU CH-5YKE-2B267 MPN CS100K

Supra-aural stereo headset with noise-cancelling electret microphone, 30 Hz to 16 kHz response and 8 ft cord

  • Headphone frequency range30 Hz-16 kHz
  • Headphone THD<1.0%
  • Headphone impedance32 ohm
  • Headphone sensitivity91 dB S.P.L. at 1 kHz
  • Wearing styleSupra-aural
  • Cord length8 ft (2.44 m)
  • Clear voice capture with 100 Hz to 16 kHz microphone range
  • Light 0.4 kg build stays comfortable during long calls
  • 8 ft cable gives freedom to move at your desk
  • Low 1 % distortion keeps audio clean at high volume
  • 32 ohm impedance works with standard PC sound cards

Supra-aural headset with electret microphone

The Koss CS100K is a supra-aural communication headset designed for voice applications. It covers a headphone frequency response of 30Hz-16KHz with a sensitivity of 91dB at 1KHz. The electret microphone provides a frequency response of 100Hz-16KHz and features noise-cancelling properties. An 8 ft cord connects the headset to the host device.

Suited for hands-free calls and voice software

This headset suits users who need hands-free communication for telephony, voice recognition or voice-activated software. The lightweight design at 0.4 weight units and supra-aural fit aim to provide comfort during extended sessions. Buyers who require a headphone jack with built-in bias supply should verify compatibility, as an external power source may be necessary otherwise. It is not intended for users seeking a circumaural design or wireless connectivity.

32 ohm impedance and 8 ft cable length

The headphones present a 32 ohm input impedance, matching standard PC and office headset jacks. The fixed 8 ft cable determines the working distance from the audio source. Total harmonic distortion is rated below 1.0% for the headphones. Microphone sensitivity is specified at -56dB per 1V/1KHz and -36dB V/Pa, both with a +/- 3dB tolerance.

How it compares

Measured against everything we stock in Wired & Wireless Headsets, at today’s prices. Recalculated every night.

Price $24.99
Cheaper than about 82% of the 1,586 comparable items (median $60.99).

Specifications

Product
Brand nameKOSS
Model nameCS100K
Audio & video
Headphone frequency range30 Hz-16 kHz
Headphone impedance32 ohm
Headphone sensitivity91 dB S.P.L. at 1 kHz
Wearing styleSupra-aural
Mic frequency response100 Hz-16 kHz
Mic sensitivity-56 dB +/- 3 dB per 1 V/1 kHz; (-36 dB +/- 3 dB, V/Pa)
Size & build
Cord length8 ft (2.44 m)
Shipping weight0.91 kg
Package size203 × 152 × 127 mm
More details
Headphone THD<1.0%

Questions about this item

Does the 8 ft cord reach a desktop tower under the desk?

The cord measures 8 ft, giving enough slack to reach a floor-standing tower from a seated position without pulling tight.

How do I connect the headset if my sound card lacks a built-in bias supply?

Use the external power source mentioned in the specifications to provide the microphone bias when the sound card does not supply it.

Will the ear pads on this supra-aural model need replacing after heavy use?

Supra-aural pads can wear with daily use; replacement pads are available separately to restore comfort and seal.

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