KRK KNS 6400 Closed-Back Around-Ear Stereo Headphones

Model #KNS-6400

Krk kns 6400 1
Krk kns 6400 1
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TypeAround-Ear, Closed-Back, Dynamic

Drivers 40mm Neodymium, Copper-Clad Aluminum Wire Voice Coils
Frequency Range 10Hz - 22kHz
Impedance 36 Ohms
Sensitivity 95dB
Total Harmonic Distortion (THD)
Maximum Input Power 1000mW
Isolation Up to 26dBA
Headband Padded Spring Steel, Adjustable, 4N Nominal Pressure
Connectors Gold-Plated 3.5mm Stereo Mini Plug with 1/4" Screw-On Adapter
Cable Length 8.2' (2.5 m)
Dimensions (WxDxH) 9.6 x 10.5 x 3.7" (245 x 268 x 94mm)
Weight 0.44 lbs (202g) (Without Cable)

Packaging Info

Package Weight 1.8 lb
Box Dimensions (LxWxH) 10.5 x 9.5 x 3.9"
Expert Reviews
15 May 2012

Most of the magic from the KNS 8400 is retained in the KNS 6400 design. You get a rock solid set of headphones with a pleasing neutral sound signature. Some of the design changes hamper the performance somewhat, but even so they are still remarkably good value being priced at a mere $100.

  • +

    Excellent price / performance ratio, Closed back design, Decent amount of noise attenuation, Comfortable to wear even over an extended period, User replaceable cable, Solid design, Good gaming performance, Excellent bundle

  • -

    Not quite as efficient noise dampening as on the KNS 8400s, Cable is a bit too long for portable use

Review head fi org.34136598
15 May 2012

I'm going to level with you -- I bought these headphones for a reason that probably nobody in history has ever purchase the KRK KNS 6400s. I bought them because I thought I might be able to coax a good bass response out of them.

  • +

    Excellent detailing, very well rendered mids, surprisingly good sub-bass, responds well to EQ, comfortable headphones, high isolation

  • -

    Even after EQ, lack of bass impact due to an overdamped bass response, very unmusical with stock settings

User Reviews
5 May 2016

On a budget working on drum tracking on a home"studio" set up. I pick the KRK's among others considered (at the price point) because of company reputation and specs from the headphones. I did a test once they came in, to check for click bleed to overheads and it its OK, not perfect.

  • +

    Price tag, KRK brand, Sound quality, Long cable,

  • -

    Not 100% noise cancelling, Ear-cups could be bigger.

Review americanmusical com.34136908
12 December 2015

Excellent pair of headphones. These produce a very true high quality studio sound. I wouldn't necessarily use headphones for mixing but out of all the lower and mid-range studio headphones I've owned, these sound the best.You really hear the quality when it comes to editing Vocals!!

B h photo.32817553
6 February 2014

Very clean and fairly accurate sound reproduction. I use these to monitor recording, and they are comfortable to wear for extended lengths of time. Good deal for the money.

Product Highlights
  • 40mm Neodymium Drivers
  • Closed-Back Design
  • Adjustable, Padded Spring Steel Headband
  • Thick Around-Ear Cushions
  • Swivel Earcups
  • Detachable Single-Sided OFC Cable
  • Gold-Plated 3.5mm Plug with 1/4" Adapter
  • Foldable Design, Carrying Case Included
Average Expert Score
Average User Score
In The Box
  • KRK KNS 6400 Closed-Back Around-Ear Stereo Headphones
  • 1/4" Adapter
  • 1-Year Limited Warranty
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