Item # 106229867 | Customer Ratings: ( 5 Based on 9 reviews)

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KRK KNS-6400 Studio Headphones
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Accurate reproduction of your music or mix.

Whether you are listening to some tracks, or tracking your next recording, the KNS 6400 gives you the famous KRK sound independent of your monitors. This closed-back around-the-ear design brings you closer to your music, and the highly isolated surround pads give you the freedom to immerse yourself in the sound without having your monitor mix "escape" into open microphones â?? and keeps live instruments out of what you are monitoring. Having "One Voice" that consistently gives you accurate reproduction of your music or mix will help you achieve just what the artist intended â?? especially if the artist is you.

KRK headphones provide a precise listening experience that takes you from personal studio to commercial studio to on-the-go track evaluations â?? and they allow you to accurately enjoy your music with the consistent voicing philosophy and honest reproduction top producers, studio musicians, performers and engineers have come to trust.

The KNS 6400 offer an incredibly natural frequency response that gives you a reference standard unaffected by your location. Day or night. Studio or home. Without disturbing others. Without compromising your tracks.

KRK KNS-6400 Studio Headphones Features:

  • Voiced to remain true to the character of KRK's class leading studio monitors, developed with 25 years of years of experience in studio sound.
    The latest reference quality frequency response for closed-back, circum-aural dynamic headphones.
    Newly developed headphone acoustical system bringing a new level of headphone performance for the first time.
    Utilizing the latest in acoustic memory foam technology ensures class leading performance in both reproduction and isolation.
    A new standard in headphone comfort, even over extended periods of use, designed to avoid feeling uncomfortable during long sessions. The special foam conforms to the ear to help ensure an improved fit.
    Exceedingly accurate, natural and wide frequency response.
    Large dynamic range with extremely consistent low-distortion detail and clarity.
    Extended low frequency definition, ensures the bass component of your music is accurately reproduced, and is not lost.
    Transparent reproduction of high-frequencies, resulting in highly accurate imaging.
    High-efficiency Neodymium 40mm driver.
    High durability 2.5m single-sided straight cable with oxygen-free copper wires.
    Adjustable, foldable driver enclosures provide comfort and portability.
    Replaceable cable, head, and ear cushions to ensure long product life.
    Soft carrying case embossed with the KRK logo for travelling engineers, or storage when not in use.
    1/4" jack plug can be unscrewed to reveal a 1/8" plug for laptops and portable media players.

KRK KNS-6400 Studio Headphones Specifications:

  • 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
    Sensitivity/Efficiency: 95 dB SPL @1mW
    Frequency Response: 10Hz-22 kHz
    Total Harmonic Distortion: < 0.1%
    Rated Impedance: 36 ohms
    Ambient Noise Isolation: up to 26 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: Leatherette
    Headphone Finish: Black impact resistant plastic
    Volume Control: Detachable / Replaceable low profile inline high quality control
    Cable: 2.5 m, (8.2 ft.), 99,99% OFC detachable
    Connector: Gold-plated stereo 1/8" (3.5 mm)
    Cable Connection: Strain relief managed
    Adaptor: Screw-on 1/4" (6.3 mm)
    Weight without Cable: 202 g (0.44 lbs)
    Net / Shipping Weight
    820 g (1.8 lbs)
    Dimensions: 245mm x 268mm x 94mm
    9.6" x 10.5" x 3.7"

KRK KNS-6400 Studio Headphones

Please read the warranty card that was included in the shipping carton of your monitor prior to shipping it back to KRK Systems, LLC. All products in need of repair can be returned to the dealer where it was purchased, or to KRK Systems, LLC. at the following address:

KRK Service Center
555 E. Easy Street.
Simi Valley, CA 93065
Tel: (818) 534.1575
Fax: (818) 534.1585

Please call for a Return Authorization number before returning any product for repair.
For the safest possible return to KRK, please use the shipping carton and packaging that your monitor was originally shipped in.

KRK cannot be responsible for any damages incurred during the shipping process due to poor packing. Make sure to insure your shipment.

If your monitor is out of warranty and you would like a quotation prior to servicing your product, please include a note with your contact information on it and we will contact you with a service quote. Service will be performed once your method of payment has been established and approved.

Replacement carton and packaging can be purchased from KRK Systems, LLC. $18.00 per carton.

For replacement part quotes call (818) 534.1575.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 9 reviews)
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Viewing Reviews 1 - 3 of 9 |
  • Like "Near Field Monitors" for your ears

    As reviewed by Rebel on 3/14/2011

    I've had these for over a month. These are NOT ?Beats by Dr. Dre?. If your looking for headphones to color the music to make it sound better, then get those or some Bose headphones. If you are looking for accurate headphones that have none of that ?Half the sound in one ear, half in the other and a missing phantom center?. Then these are great. There is a smooth panning field with a well defined phantom center. They are like near field monitors for your ears. The bass is deep and well defined and will vibrate your headphones. The bass is not an overpowering driving force. These are for hearing the music as it really is. If you want to be able to mix a track so it sounds good on any equipment it's played on, then you want these. I will admit that if you are playing these just through your ?PC headphones out? jack they will sound like they are missing bass and the highs will sound brittle. Do yourself a favor and get a good headphone amp. You should have one anyway if you plan on mixing accurately. And by the way, these get REALLY LOUD without distorting with a good amp. Yet are very accurate at low levels. I have different headphones (BeatsByDre Pro, AKG K99, Audio-Technica ATH-M35, Shure SRH240) and I find these the best for mixing on due to how flat they are.I also like the fact that the cord is replaceable. I have had to replace headphones due to a ruined cord. Also I recommend burning these for about 3 days before they are really ready. I used a sine wave sweep generator while playing different styles of music (Dance/Hip Hop/Rock/Classical) for over 75 hours. In this price range these are the one of the best headphones you can get. Just don't expect much if playing through a weak amp like the ones built into laptops and PC's

    8 of 8 people found this review helpful.
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  • Pretty Flat, Good For Studio Reference

    As reviewed by Michael Cabrera on 12/26/2010

    Got the KRKs, I heard people saying that they dont have good bass, TRUE they dont, but they do. THEY"RE JUST FLAT! Everything depends on you mixes. Ill recomend this headphones for Hip-Hop/R&B producer.

    7 of 7 people found this review helpful.
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  • Great Reference Headphones from a great audio company... BURN-IN first!

    As reviewed by Daniel Nebab on 4/19/2011

    As with every pair of QUALITY headphones, you should always burn-in (at least 100hrs, some times 200hrs depending on your cans.) I bought these after reading many reviews and doing my research on and found these will be comparable to my Etymotic ER-6i's. The Ety's were among my first pair of pro headphones/earphones, and I like their accurate/flat sound. If you're looking for headphones to color your music/sound, then go for some Monster Beats or Bose Headphones. Do note though, those are high-end CONSUMER headphones are not recommended, nor are used by audio professionals. I myself am no audio engineer (still working on my degree) but love listening to music. These cans out of the box are very bright, almost harsh. It was SUPER clear, but too harsh to enjoy, so after a few days of burn-in, (as of right now, they only have 25hrs of burn in) they seem to balance out, and the bass/lows are coming out. The mids were very prominent and well defined from the beginning, but now they seem more lively and natural. The highs are fine, seemed to have rolled-off a bit, but still very clear. Compared to my Sennheiser HD428's, these are VERY clear and accurate. The HD428's are still very clear, bassy and lively, without the muddy over powered bass of Beats. These are so far my BEST pair of headphones, with great isolation, great comfort (the KNS-8400 is probably worlds more comfy due to memory foam pads) and the sound is phenomenal. I've recently gotten into making short films, so I'll be using these for audio editing in post production. These are great for musicians, engineers, and other audio professionals as well as general music listening. PROS - Clean, Accurate, Lively Proffesional Sound (after burn in) - Comfortable and Lightweight - Durable - VERY Competitive Price - User Replaceable Parts CONS: - Lacking Memory Foam Pads of KNS-8400 (but you can probably install those yourself) - Out of the Box - Sound is very bright, but balances out after burn in - Didn't come out sooner! Bottom Line: I would DEFINITELY recommend these to a friend, if I didn't want to keep these among the best kept secrets of audio professionals. MY BACKGROUND: I like music, but after getting a pair of Sennheiser PX100's for my 15th birthday, I realized I now LOVE music. I then set on a venture to find (and review) the best headphones (I can afford). Unfortunately I've never owned any amps for these, but most of them are 36ohms, 32ohms, and 16ohms. I'm 20 now, and have been through more headphones than the average music listener will go through in their lifetime. Headphones I've owned/currently own: Sennheiser - PX100 black - PX100 white - HD205 - HD428 - IE8 Sony - MDR-EX56LP - MDR-V150 Klipsch - Image S2 - Image One Koss - PortaPro (25th Anniversary Edition) Etymotic - ER-6i KRK Systems - KNS-6400 Audio Sources I've used a few mp3 players iPods - original 4th Gen - Video/5th Gen - iPod Touch 1st gen, 2nd, and 3rd gen Zunes - original 30gb Zune - Zune HD (16gb) - GREAT audio. Made for music, not 'apps' Creative Labs - X-fi2 (8gb) - Best audio so far. Very adjustable. Love 'Crystalizer' and 'Expand' settings. Gives you better soundstage, and livelier sound. Right now, I'm running my music from a Creative Labs X-fi2, which is among the best music players in terms of great audio quality and very adjustable musical experience.

    3 of 3 people found this review helpful.
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PO Box 4769
Westlake Village, CA 91359
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