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KRK KNS 6400 Studio Headphones
  • KRK KNS 6400 Studio Headphones
  • KRK KNS 6400 Studio Headphones
  • KRK KNS 6400 Studio Headphones

KRK KNS 6400 Studio Headphones

Code: KNS6400
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  • Amazing quality KRK Headphones
  • 3.5mm and 6.35mm Connector Included
  • Replaceable cable, head, and ear cushions to ensure long product life
  • Designed to avoid feeling uncomfortable during long sessions
  • Adjustable, foldable driver enclosures provide comfort and portability
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RRP: £99.00 (inc. VAT)
Save: 30%
Your Price: £69.00 (inc. VAT)
Item out of Stock  |   Express Delivery
  • Delivery Information
  • Express Delivery - £4.99
  • Standard Delivery - FREE
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KRK KNS 6400 Studio Headphones

KRK KNS 6400 Headphones provide a precise listening experience that takes you from personal studio to commercial studio to on-the-go track evaluations -- 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. KRK KNS 6400 headphones provide 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. Passionate about music and interested in experiencing the artist’s vision as it was intended to be heard? Then experience KRK.

KRK KNS 6400 Headphones

Whether you are listening to some tracks, or tracking your next recording, the KNS6400 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 -- 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 -- especially if the artist is you.

KRK KNS 6400 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.



  • 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 cellular foam
  • Headpad Finish - Leatherette
  • Headphone Finish - Black impact resistant plastic
  • 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 (0.44lbs)
  • 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

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Delivery Charges
Please note free delivery cannot be used in conjunction with any other offer, for example discount codes.
Normal Charges are:
All orders over £20.00 (excluding PC systems) will be delivered free (UK Mainland)
All orders below £20.00 will start as low as £2.49 depending upon weight and qty(s)
Typically most items such as an Audio Interface or a Microphone would cost £5.49. (UK Mainland)
Delivery of PC Systems is £19.99. (This includes Insurance and Packing Materials)

Delivery Times
UK Mainland 1-2 Days
Non UK Mainland Addresses please allow 1-3 Days
Delivery To Belgium / France / Germany please allow 2-3 Days
Music PC Systems - Please allow 5- 7 Working Days (UK) 7-14 (Rest of the World)

French - Pour la Livraison s'il vous plaît permet en France 2-3 Jours
German - Für Lieferung Nach Deutschland erlaubt bitte 2-3 Tage

Delivery Notes
On delivery you must inspect the goods carefully for damage as Inta Audio is unable to accept responsibility for damage in transit, shortage of delivery or loss of products unless the customer advises Inta Audio of such within three working days from the date of delivery.


Returns Policy

We ask that you follow these guidelines to help us process your return as quickly and efficiently as possible:

1. Please keep your order reference to hand. This confirms your original order and gives us the necessary details to authorise the product’s return.

2. Contact our Customer Services Team on 02476 369897 (or e-mail We will then send you an RMA number and returns form which needs to be completed and sent back with the returned item(s).

3. (If the order has been unpacked) re-package it to ensure that it is being returned in its original condition. Please make sure all items relating to the product are returned, including manuals and cables.

4. When returning an item please obtain a ‘proof of postage’ receipt from the Courier.

Returned items must be mailed within 10 days of when the RMA Number has been issued. Items received with a post date 30 days after your requested return will NOT be eligible for refund.

Please note: Our returns policy is quite straightforward but there are a number of conditions that we ask our customers to comply with before applying:

1. It is your responsibility to request a return. If you don’t tell us you want to make a return, we don’t know. Once you do tell us, we will do everything we can to action it.

2. If you have not requested a return within 28 days of receiving an order, we will have assumed that you are intending to keep it and we will not authorise a return.

3. We always refund the payment according to how the original purchase was made and aim to do so within 72hrs of the return being received by us.

4. Returned goods are liable for a restocking fee of 15% towards handling and repackaging if the order is not returned in its original, unopened packaging. This charge will be subject to our inspection of the returned goods.

5. Delivery charges will not be refunded unless the delivered goods are faulty.

6. Replacement products are dispatched immediately after the returned goods have been received and accepted by Inta Audio.

7. Items that develop a fault within 30 days of delivery are eligible for a replacement or a refund. Delivery costs are also reimbursed for faulty items. Please contact our Customer Services Team on 02476 369898 if you believe your item has developed a fault.

Finally, please remember that notifying us of your intention to apply for a return, saving the delivery paperwork and keeping the order in its original packaging will help both you and Inta Audio to process the return quickly.

If you have any questions about our Returns policy please telephone us on 02476 369897 or email us at