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High-performance studio headphones

The K121 MKII professional on-ear semi-open headphones are a cost-effective alternative to the K141 MK IIs for studio monitoring and playback. Designed for single-ear use, they deliver familiar sound and make intonation easy.

The K121 MKII headphones feature gimbal-suspended leatherette ear cups for easy cleaning. The self-adjusting headband makes them comfortable to wear and easy to use, even in long work sessions. The K121 MKII's come with a fixed, single-sided, straight cable.

  • On-ear, semi-open design
    for solid bass and airy highs
  • Optimized for single-ear use
    for familiar sound and easier intonation
  • Self-adjusting headband
    maximum comfort for long work sessions
Headphone typesemi-open
Audio Frequency bandwidth18 to 22500 Hz
Sensitivity headphones114 dB SPL/V
Rated Impedance55 Ohms
Detachable cableno
Cable Length3 m
Earpads Replaceableyes
Audio Interface
TypeScrew-on Jack Combo (1/4" and 1/8")
Interface FinishGold
Finishmatte black
Dimensions / Weight
Length23 mm
Width11 mm
Height22 mm
Net Weight220 g