KRK KNS 6400
Contents
1. RECORDING STUDIO LEAVES RUSTLING CALM BREATHING AUDITORY THRESHOLD le e el e WARRANTY Please refer to the warranty card shipped with your product Please also fill in the attached registration card if you d like us to keep you up to date on KRK developments DISPOSAL This symbol on the product in the instructions or on the packaging means that your electrical and electronic equipment should be disposed at the end of its life separately from your household waste There are separate collection systems for recycling in the EU For more information please contact the local authority or your retailer where you purchased the product This product s packaging materials are recyclable and can be reused We advise keeping the packaging for shipping but if you choose to dispose of it please do so in accordance with your local authorities regulations CARE AND MAINTENANCE KNS Series headphones do not require a service schedule Please follow the cautions below when cleaning your product CAUTION Only use the provided anti microbial bacterial cloth to clean your headphones this will help maintain good hygiene CAUTION Never use solvents or thinners to clean the headphones this can damage the headphones CAUTION Ifthe headphones become excessively dirty wipe down with a slightly damp non abrasive cloth then dry immediately CAUTION While cleaning your headphones please avoid getting liquid and or2. foreign objects in the driver ports volume control and connections WELCOME Congratulations on your choice of headphones and welcome to the ever growing family of KRK owners KRK s KNS Series of professional studio headphones are designed to forever change the way you handle your most demanding audio jobs The KNS headphones feature key design elements that continue to make the KRK sound a studio standard The series was created using stringent design philosophies applied to all of our products The result is a studio reference set of headphones that you can trust delivering defined low end articulate midrange and precise natural highs Whether you are making critical mixing decisions or need to capture the subtle nuances of a unique sound you ll quickly discover that the KNS Series deliver a new level of audio performance This manual is intended to inform you of the many features of your new KNS headphones We encourage you to take a few minutes to familiarize yourself with this manual Thank you once again for choosing KRK USAGE GUIDANCE The KNS series headphones are designed for critical listening and monitoring in the following situations Engineer Artist Recording Studio Mixing Monitoring Recording Engineer Artist Broadcast Studio Mixing Monitoring Recording Musician Artist Studio Monitoring Composition Recording Musician Artist Live Stage Monitoring Technician Monitoring at any locat
3. or other foreign objects enter the inside of the device fire or electric shock may result WARNING Do not attempt to disassemble or modify this product Doing so could result in personal injury and or product failure WARNING Do not use mobile phone adaptors to connect headphones to the jack sockets on airplane seats This can cause overheating possibly resulting in personal injury such as burns et WARNING Do not use headphones when driving or operating any kind of mechanized transport Safety of yourself and pedestrians is put at risk as you are prevented from hearing external warning noises CAUTION The character of external warning sounds can be affected during headphone use Ensure you can still recognize these sounds before use CAUTION Do not subject headphones to extreme force such as dropping impact from another object or impact from poorly packed luggage CAUTION Do not pull or put excessive strain on the headphone cable this may cause damage and or failure CAUTION Keep the product dry and avoid exposure to extreme temperatures and humidity CAUTION Ensure the headphone plug is securly being held when disconnecting the cable never pull on the cable as this could cause damage to the connections NOTE It is common for the headphone ear cushions to gradually deteriorate over time this is commonly known as wear and tear SAFETY LISTENING GUIDANCE WARNING LISTENING TO AUDIO AT EXCESSIVE VOLUMES C
4. 30 dBA Long Term Maximum Power Handling 1000mWw 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 KNS 6400 Acoustic memory foam KNS 8400 Headpad Finish Leatherette KNS 6400 Premium leatherette KNS 8400 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 KNS 6400 202 g 0 44lbs KNS 8400 232 g 0 51 lbs Net Shipping Weight KNS 6400 820 g 1 8 Ibs KNS 8400 850 g 1 87 Ibs Dimensions 245mm x 268mm x 94mm 9 6 x 10 5 x 3 7 For improvement purposes specifications and design are subject to change without notice ACCESSORIES AND PART NUMBERS Part Numbers KNS 6400 KNS 6400 HEADPHONE KNS 8400 KNS 8400 HEADPHONE CUSK00001 CUSHION EAR KNS6400 CUSK00002 CUSHION HEAD KNS6400 CUSK00003 CUSHION EAR KNS8400 CUSK00004 CUSHION HEAD KNS8400 CBLK00027 CABLE COILED 2 5 M KNS CBLK00028 CABLE STRAIGHT 2 5 M KNS CBLK00029 CABLE STRAIGHT 3M EXTENSION KNS CBLK00030 CABLE STRAIGHT 10M EXTENSION KNS CBLK00031 VOLUME CONTROL KNS CBLK00032 CABLE STRAIGHT 1 5 M KNS BAGK00009 BAG PROTECTIVE KNS CONK00007 CONNECTOR 1 8 to 1 4 ADAPTER K
5. AN CAUSE PERMANENT HEARING DAMAGE USE AS LOW A VOLUME AS POSSIBLE Over exposure to excessive sound levels can damage your ears resulting in permanent noise induced hearing loss NIHL Please use the following guidelines established by the Occupational Safety Health Administration OSHA on maximum time exposure to sound pressure levels before hearing damage occurs RISKS ACTIONS RISK OF WINDOWS BREAKING 140 dB PEAK EXPOSURE LIMIT 137dB PEAK UPPER EXPOSURE ACTION 135 dB PEAK LOWER EXPOSURE ACTION __ RISK OF PERMANENT HEARING DAMAGE PEAK 87dB EXPOSURE LIMIT 85 dB UPPER EXPOSURE ACTION 80 dB LOWER EXPOSURE ACTION RISK OF PERMANENT HEARING DAMAGE CONTINUOUS LISTENING DURATION GUIDANCE x o v ll E Qa Y N o o o a o S S 120dB 115dB 110dB 105dB 100dB 95dB 90dB Avoid or take reduction precautions 15 minutes 30 minutes 1 hour 2 hours 4 hours 8 hours level dependant w o N o o o RELATIVE LEVEL THEORETICAL LIMIT IN AIR SPACE SHUTTLE LAUNCH CANON FIRING DANGER JET ENGINE EMERGENCY SIREN LOUD CONCERT ROCK ELECTRONIC 137 5 dB PAIN THRESHOLD AVERAGE CYMBAL STRIKES HIGH HATS FULL SYMPHONY ORCHESTRA JACK HAMMER AT 1m RISK BUSY ROAD TRAFFIC PERSONAL AUDIO SYSTEMS HOME THEATRE TV NORMAL OFFICE QUIET OFFICE QUIET RESIDENTIAL SAFE
6. KNS SERIES PROFESSIONAL HEADPHONES KNS6400 ANK KNS8400 s SEM S USER MANUAL CONTENTS Your carton should contain the following items User manual this document KNS 6400 or KNS 8400 headphones Connection cable with screw in adaptor fitted Protective soft bag Anti Microbial Bacterial cleaning cloth KNS 8400 type contains an additional in line volume control REGULATORY CERTIFICATION KRK declare under our sole responsibility that this product to which this declaration relates is in conformity with the following standards A KoHS REACh The Declaration of Conformity can be obtained from 382 Ave de la Couronne B 1050 Brussles Authorized European representative Phone 3226450500 Fax 326450505 WARNING This product contains a chemical known to the State of California to cause cancer and birth defects or other reproductive harm A e 9 A A A A 8 e 8 a e 9 SAFETY The possible results of incorrect use are marked by one of the two symbols WARNING and CAUTION depending on the imminence of the danger and the severity of the damage WARNING Ignoring these warnings may cause severe injury or death as a result of incorrect operation CAUTION Ignoring these cautions may cause moderate injury or damage as a result of incorrect operation NOTE This advice ensures you continue to get the best long term performance from your headphones WARNING If water
7. NS Replacement parts and accessories Accessories or replacement parts can be ordered through KRK Customer Service Sales Please see the contact information on the final page of this document for contacts in your territory WEARING ADJUSTING GUIDE Place the headphones on the head guided by the markings which identify the left and right driver enclosures Adjust the headband as shown below so it rests gently on top of your head and the ear cushions fit comfortably around your ears The driver enclosure is connected using an adjustable yoke which will naturally turn to ensure proper fitting and optimum performance There should not be excessive pressure when the headband is adjusted correctly fo CONNECTING The KRK KNS series headphones connect with almost any professional and consumer audio device such as Professional Live Recording and Broadcast Mixers Audio Interfaces Headphone Amplifiers personal computers personal media players CD DVD Blu Ray players Most professional audio equipment utilizes a Y socket for connection of headphones In this instance the headphones are ready to use as supplied with the Y screw in adapter fitted Personal computers media players and some consumer devices utilize an 1 8 socket for connection of headphones In this instance please un screw the Y adapter from the tip of the cable to reveal the 1 8 connection Please remember to store the adaptor safel
8. aging e Designed to last made from durable impact resistant materials throughout the system e Designed in California made in Taiwan FEATURES e High efficiency Neodynium 40mm driver e High durability 2 5m single sided straight cable with oxygen free copper wires e KNS 8400 comes with a replaceable in line volume control with a sleek profile which is designed not to catch on clothing or instruments during performance The volume control also uses a high quality long life fader and comes in a sturdy enclosure e Adjustable foldable driver enclosures provide comfort and portability e Replacable cable head and ear cushions to ensure long product life e Soft carrying case embossed with the KRK logo for travelling engineers or storage when not in use e Y jack plug can be unscrewed to reveal a 1 8 plug for laptops and portable media players e Anti microbial bacterial cleaning cloth e User instructions and warranty 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 KNS 6400 95dB SPL 1mW KNS 8400 97 dB SPL 1mW Frequency Response KNS 6400 10Hz 22 kHz KNS 8400 5Hz 23 kHz Total Harmonic Distortion lt 0 1 Rated Impedance 36 ohms Ambient Noise Isolation KNS 6400 up to 26 dBA KNS 8400 up to
9. d around the inside rim of the headband If a head cushion becomes loose simply push the mounting flange of the earcup cushion back into the earcup Using your finger or thumb press around the edge of the mounting flange making sure it snaps in place all the way around the head cushion REPLACING THE EAR CUSHIONS The ear cushions are held in place by a mounting flange which snaps under small tabs located around the inside rim of the driver enclosure If an ear cushion becomes loose simply push the mounting flange of the ear cushion back into the driver enclosure Using your finger or thumb press around the edge of the mounting flange making sure it snaps in place all the way around the ear cushion STORAGE AND PROTECTION To ensure your headphones are well protected during travel there is a specially designed soft bag included in the package Please ensure the headphones are fitted into the bag as shown below and that it is tied securely to prevent anything from entering the bag which could cause damage TROUBLESHOOTING Problem What to do No audio Ensure your device is plugged in correctly Ensure your device is connected to the correct socket Ensure the source is sending audio and the output level is good Excessive bass Turn off any bass boost features on the source device Distorted bass Make sure that the driver enclosure ports are not blocked if they become blocked please clean as directed Distorted
10. ent of your monitors This closed back around the ear design brings you closer to your music and the highly isolated memory foam ear cushions provide incredible isolation and long term comfort Having One Voice that consistently gives you an accurate reproduction of your music or mix will help you to achieve just what the artist intended Especially when the artist is you FEATURES e 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 e The latest reference quality frequency response for closed back circum aural dynamic headphones e Newly developed headphone acoustical system bringing a new level of headphone performance for the first time e Utilizing the latest in acoustic memory foam technology ensures class leading performance in both reproduction and isolation Anew standard in headphone comfort even over extended periods of use designed to avoid feeling uncomfortable especially during long periods of use The special foam conforms to the ear to help ensure an improved fit e Exceedingly accurate natural and wide frequency response e Large dynamic range with extremely consistent low distortion detail and clarity e Extended low frequency definition ensures the bass component of your music is accurately reproduced and is not lost e Transparent reproduction of high frequencies resulting in highly accurate im
11. ion General Personal music listening DESIGN PHILOSOPHY Any studio monitor is a tool used to aurally measure the changes in an audio path Ask any seasoned recording professional what they think makes a great monitor and you ll get the same consistent answers Accuracy transparency flat response and the truth From years of listening to feedback from some of the top engineers and producers the KRK design team has an in depth understanding how a properly tuned monitor is a critically important recording tool The KNS series headphones are designed engineered and tuned to the same exacting standards and have been developed to be as flat as possible so that what you hear represents the true nature of the audio material without coloration or enhancement Using professional monitors in an acoustically correct studio is ideal for recording mixing and mastering but there are times when portability sound isolation and freedom from your environment s acoustic limitations are the priority The KNS Series from KRK is becoming the headphone of choice for mix analysis After all hearing what is wrong with your mix is just as important as hearing what is right At KRK our passion is monitoring and accurately reproducing a natural honest sound everywhere in the control room the KNS series are no exception Whether you are mixing tracks or recording your next song the KNS series gives you the famous KRK sound independ
12. sound Ensure that the driver enclosure ports are not blocked if they become blocked please clean as directed If any problem persists contact Customer Service See the phone number for your area included in this guide CONTACT DETAILS POSTAL KRK Systems LLC 772 S Military Trail Deerfield Beach FL 33442 WEB www krksys com SALES EMAIL salesorders krksys com TELEPHONE 1 954 949 9600 option 1 FAX 1 954 949 9590 CUSTOMER SUPPORT EMAIL service krksys com TELEPHONE 1 954 949 9600 option 3 FAX 1 954 949 9590 REPAIRS RETURNS EMAIL returns krksys com TELEPHONE 1 954 949 9600 option 2 FAX 1 954 949 9590 MARKETING COMMUNICATIONS marketing krksys com HUMAN RESOURCES hr staffing krksys com Please provide your phone number with your contact e mail message NOTES LITKO0063 REV B KNS USER MANUAL
13. y so that it can be used when necessary Insert the headphone plug securely into the audio jack of the selected audio device NOTE KRK recommends turning off all sound enhancements special effects present in some consumer devices before use This processing can prevent you from getting the best performance from your headphones WARNING The KNS headphones when driven by high powered headphone amplifiers have the capability to reproduce audio at levels which can damage hearing over time Please ensure good care when connecting setting up and using your headphones Keep in mind that your ears are the most important tool of your trade please treat them accordingly WARNING When plugging your headphones into a headphone amplifier please make sure that the level control on the amplifier mixer audio interface is set to minimum and slowly raised to the required operating level CABLE CONNECTION GUIDE 1 Insert 1 8 connector into socket from cable or headphone volume control When properly inserted you will feel it click into place Now turn the plug clockwise in the socket to secure the cable wN VOLUME CONTROL CONNECTION GUIDE ox OGD coo gt Too CUSHION REMOVAL FITTING GUIDE iS ee ON REPLACING THE HEAD CUSHION The head cushion is held in place by a mounting flange which snaps under small tabs locate
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