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KRK KNS-8400
Headphones, dynamic, closed-back, 40mm neodymium drivers, 5Hz-23kHz

OUR PART #:  KNS8400

The KNS 8400 -- with their ability to reveal exactly what you have on the tracks is an ideal choice for critical listening.
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Our Price: $149.99
List Price: $249.98
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KRK KNS-8400
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The KNS 8400 -- with their ability to reveal exactly what you have on the tracks is an ideal choice for critical listening. Being able to discern the most subtle differences in pitch, timbre and tone helps you to get it right every mix, every take, every performance. Isolating memory foam in the ear cushions delivers improved low end response and because they gently conform to your unique head shape you’ll be comfortable wearing them all day.


System / Design

  • Dynamic

Operating System

  • Closed-back

Head Coupling

  • Circumaural (Isolating)

Voice Coil

  • Copper-clad aluminum wire

Driver Type

  • Low weight neodymium

Driver Diameter

  • 40mm


  • 97 dB SPL @1mW

Frequency Response

  • 5Hz-23 kHz

Total Harmonic Distortion

  •  < 0.1%

Rated Impedance

  • 36 ohms

Ambient Noise Isolation

  • up to 30 dBA

Long Term Maximum Power Handling 1000mW

  • (500mW per side as per IEC 60268-7)

Earcup Rotation

  • 90 degrees

Nominal Headband Pressure

  • 4 N (based on average head size)

Headband Type

  • Adjustable / Sprung steel skeleton

Ear Cushion type

  • Acoustic memory foam

Headpad Finish

  • Premium leatherette

Headphone Finish

  • Black impact resistant plastic

Volume Control

  • Detachable / Replaceable low profile inline high quality control


  • 2.5 m, (8.2 ft.), 99,99% OFC detachable


  • Gold-plated stereo 1/8” (3.5 mm)

Cable Connection

  • Strain relief managed


  • Screw-on 1/4” (6.3 mm)

Weight without Cable

  • 232 g (0.51 lbs)

Net / Shipping Weight

  • 850 g (1.87 lbs)


  • 245mm x 268mm x 94mm
  • 9.6” x 10.5” x 3.7”


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