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KNS SERIES
PROFESSIONAL HEADPHONES
KNS6400
KNS8400
USER MANUAL
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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: The Declaration of Conformity can be obtai
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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:
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SAFETY LISTENING GUIDANCE WARNING: LISTENING TO AUDIO AT EXCESSIVE VOLUMES CAN 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 SPL(dB)RELATIVE LEVEL 190 THEORE
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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 th
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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 y
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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
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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 is
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FEATURES • High-efficiency Neodynium 40mm driver • High durability 2.5m single-sided straight cable with oxygen-free copper wires • 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. • Adjustable, foldable driver enclosures provide comfort and portability • Replacable cable, head, and ear c
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SPECIFICATIONS System / Design Nominal Headband Pressure Dynamic 4 N (based on average head size) Operating System Headband Type Closed-back Adjustable / Sprung steel skeleton Head Coupling Ear Cushion type Circumaural (Isolating) Acoustic cellular foam [KNS-6400] Acoustic memory foam [KNS-8400] Voice Coil Copper-clad aluminum wire Headpad Finish Leatherette [KNS-6400] Driver Type Premium leatherette [KNS-8400] Low weight neodymium Headphone Finish Driver Diameter Black i
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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
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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. 12
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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 ¼” socket for connection of headphones. In this instance, the headphones are ready to use as supplied with the ¼ screw-in adapter fitted. Personal computers, media players and so
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CABLE CONNECTION GUIDE 1. Insert 1/8” connector into socket (from cable or headphone volume control) 2. When properly inserted you will feel it “click” into place. 3. Now turn the plug clockwise in the socket to secure the cable VOLUME CONTROL CONNECTION GUIDE 14
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CUSHION REMOVAL/FITTING GUIDE REPLACING THE HEAD CUSHION The head cushion is held in place by a mounting flange which snaps under small tabs located 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 he
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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. 16
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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 sound Ensure that the driver enclosure ports are not blocked, if they become
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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 RESOU
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NOTES 19
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LITK00063 - REV B - KNS USER MANUAL
