Nady Systems QH-50NC headphone
Contents
1. Sensitivity cee eeeceteesereesteeserereees 120dB mW power on 115dB mW power off Noise Reduction Level ou ccccccscccsccsessssssssssssssaeseeseeeeuees 10dB 50Hz 1KHz POWER SUPON raaa a teed iueeditevetes Single AAA alkaline battery Fees OR ad ttt P SEA ce al heal eet A E 3 5mm stereo mini plug Codan a8 re ceed tases denna tends a cosets aactan a ie 50 inches 5 Typical Battery Life Up to 25 hours depending on listening volume For product improvement purposes design and specifications are subject to change at any time without prior notice2. 90 DAYS WARRANTY Nady Systems Inc warrants to the original consumer purchaser that your unit is free from any defects in material or workmanship for a period of 90 days from the date of purchase If any such defect is discovered within the warranty period Nady Systems Inc will repair or replace the unit free of charge subject to verification of the defect or malfunction upon delivery or shipping prepaid to Nady Systems Important Please do not return our product to the store where it was purchased Nady Systems Inc accepts the responsibility of Keeping you a satisfied customer This warranty does not apply to defects or physical damage resulting from abuse neglect accident improper repair alteration or unreasonable use of the unit resulting in cracked or broken cases or parts or units damaged by excessive heat and does not apply to batteries or damage caused by leaking batteries This warranty does not cover finish or appearance items nor items dam aged in shipment en route to Nady Systems Inc for repair You must include proof of date and place of purchase i e photocopy of your bill of sale or we cannot be responsible for repairs or replacement If factory service is required you must contact our Service Department at 510 652 2411 for a return authorization RA number Make sure the RA number is clearly marked on the outside of the package Nady Systems Inc will not repair nor be held responsible for any units sent without prope
3. by pulling up or down on each end so it rests gently on top of your head and the ear cup cushions fit comfortably around your ears Always wear the headphones with the cable on the left to ensure proper L R stereo sound 4 Turn on the power for the noise canceling circuitry with the sliding ON OFF switch on the in line battery compartment housing on the headphones cable The red LED will light whenever power is ON and you should then hear that the ambient noise is reduced If you re using the headphones in a quiet location you may not need the noise canceling feature In that case simply leave the power OFF and use like standard passive headphones 5 Turn on the power of the equipment to which are connected and you are ready to enjoy listening noise free even if you are in a noisy environment 6 Always make sure the power is turned off and LED is not lit whenever you are storing the headphones or not using them TROUBLESHOOTING No sound e Check the connection of the headphones and the AV equipment to which is connected e Check that the connected AV equipment is turned on and the volume is up Noise Reduction Absent e Check that the headphones power is turned on LED lit e Replace the battery with a fresh alkaline SPECIFICATIONS DUVET en scenes mitered cael on ne letaan adi A 50mm diameter FREQUEN CV RESPONSE sen datu recency seth wal e 20Hz 20KHz Impedantie cenene str accent cere restr ere cry Creare ee irri paneer pc rerr rere 32 ohms
4. e art noise canceling circuit design elimi nates virtually all background ambient noise for total quiet listening enjoyment e Large 50mm drivers for unsurpassed audio rich powerful with full frequency response and punchy bass e Full size padded leatherette ear cups and headband for ultimate long lasting wearing comfort e Adjustable headband for comfortable fit with all head sizes e Separate battery compartment on cable for convenience uses single AAA battery e Operates as standard passive headphones when noise canceling circuitry is inactivated USING YOUR HEADPHONES 1 Your headphones are supplied with an in line battery compartment on the cable Grasping the housing firmly with your hands remove the battery door by sliding it open as indicated by the arrow on the cover Insert a fresh alkaline AAA battery 2 The headphones are provided with a 3 5mm stereo mini plug for the signal input and can be used with a variety of AV equipment as supplied CD DVD or MP3 4 players personal or laptop computers or home stereo systems It can also be used for most airline audio with the optional dual plug adapter not sup plied Some audio sources with a 1 4 jack such as professional audio mixers require the use of an optional readily available 1 4 3 5mm mini stereo plug adapter After you have confirmed plug jack compatibility connect the head phones to the equipment to which you will be listening 3 Adjust the headband
5. r identification and return address or RA number clearly marked on the package For service ship units prepaid to Nady Systems Inc Service Department 6701 Shellmound St Emeryville CA 94608 Any applicable implied warranties including warranties of merchantability and fitness are hereby limited to 90 days from date of purchase Consequential or incidental damages resulting from a breach of any applicable express or implied warranties are hereby exclud ed This warranty is in lieu of all other agreements and warranties general or special express or implied and no representative or person is authorized to assume for us any other liability in connection with the sale or use of this Nady System s product Some states do not allow limitations on how long implied warranties last and do not allow exclusion of inci dental or consequential damages so the above limitations and exclusions may not apply to you This warranty gives you specific legal rights and you may also have other rights which may vary from state to state NADY USER GUIDE RacketBlaster QH 50NC Noise Canceling Stereo Headphones INTRODUCTION Congratulations You ve purchased one of the finest noise canceling headphones available Its innovative technology eliminates unwanted outside noise and enables your private listening pleasure even in noisy environments Please read this user guide carefully to ensure the best performance of your headphones FEATURES e State of th
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