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SAVE THESE INSTRUCTIONS FOR LATER USE.
FOLLOW ALL WARNINGS AND INSTRUCTIONS MARKED ON THE 
AUDIO EQUIPMENT.

1  Read instructions 

- All the safety and operating instructions should be 

read before the product is operated.

2  Retain instructions 

- The safety and operating instructions should be 

retained for future reference.

3  Heed Warnings 

- All warnings on the product and in the operating 

instructions should be adhered to.

4  Follow Instructions 

- All operating and use instructions should be 

followed.

5 Cleaning 

- Unplug this product from the wall outlet before cleaning. 

Do not use liquid cleaners or aerosol cleaners. Clean only with a dry 
cloth.

6 Attachments 

- Do not use attachments not recommended by the 

product manufacturer as they may cause hazards.

7  Water and Moisture 

- Do not use this product near water-for example, 

near a bath tub, wash bowl, kitchen sink, or laundry tub; in a wet 
basement; or near a swimming pool; and the like.

8 Accessories 

- Do not place this product on an unstable cart, stand, 

tripod, bracket, or table. The product may fall, causing serious injury to 
a child or adult, and serious damage to the product. Use only with a 
cart, stand, tripod, bracket, or table recommended by the manufacturer, 
or sold with the product. Any mounting of the product should follow 
the manufacturer’s instructions, and should use a mounting accessory 
recommended by the manufacturer.

A product and cart combination should be moved with 
care. Quick stops, excessive force, and uneven surfaces may 
cause the product and cart combination to overturn.

10 Ventilation 

- Slots and openings in the cabinet are provided for 

ventilation and to ensure reliable operation of the product and to 
protect it from overheating, and these openings must not be blocked 
or covered. The openings should never be blocked by placing the 
product on a bed, sofa, rug, or other similar surface. This product should 
not be placed in a built-in installation such as a bookcase or rack unless 
proper ventilation is provided or the manufacturer’s instructions have 
been adhered to.

11  Power Sources 

- This product should be operated only from the type of 

power source indicated on the marking label. If you are not sure of the 
type of power supply to your home, consult your product dealer or local 
power company. The primary method of isolating the amplifier from 
the mains supply is to disconnect the mains plug. Ensure that the mains 
plug remains accessible at all times. Unplug the AC power cord from the 
AC outlet if the unit will not be used for several months or more.

12  Grounding or Polarization 

- This product may be equipped with a 

polarized alternating current line plug (a plug having one blade wider 
than the other). This plug will fit into the power outlet only one way. 
This is a safety feature. If you are unable to insert the plug fully into the 
outlet, try reversing the plug. If the plug should still fail to fit, contact 
your electrician to replace your obsolete outlet. Do not defeat the safety 
purpose of the polarized plug.

13  Power Cord Protection 

- Power supply cords should be routed so that 

they are not likely to be walked on or pinched by items placed upon or 
against them, paying particular attention to cords at plugs, convenience 
receptacles, and the point where they exit from the product.

14  Outdoor Antenna Grounding 

- If an outside antenna or cable system 

is connected to the product, be sure the antenna or cable system is 
grounded so as to provide some protection against voltage surges 
and built-up static charges. Article 810 of the National Electrical Code, 
ANSI/NFPA 70, provides information with regard to proper grounding 
of the mast and supporting structure, grounding of the lead-in wire 
to an antenna discharge unit, size of grounding conductors, location 
of antenna discharge unit, connection to grounding electrodes, and 
requirements for the grounding electrode.

NOTE TO CATV SYSTEM INSTALLER

This reminder is provided to call the CATV system installer’s attention to Section 
820-40 of the NEC which provides guidelines for proper grounding and, in 
particular, specifies that the cable ground shall be connected to the grounding 
system of the building, as close to the point of cable entry as practical.

15 Lightning 

- For added protection for this product during a lightning 

storm, or when it is left unattended and unused for long periods of 
time, unplug it from the wall outlet and disconnect the antenna or 
cable system. This will prevent damage to the product due to lightning 
and power line surges.

16  Power Lines 

- An outside antenna system should not be located in the 

vicinity of overhead power lines or other electric light or power circuits, 
or where it can fall into such power lines or circuits. When installing an 
outside antenna system, extreme care should be taken to keep from 
touching such power lines or circuits as contact with them might be 
fatal.

17 Overloading 

- Do not overload wall outlets, extension cords, or 

integral convenience receptacles as this can result in a risk of fire or 
electric shock.

18  Object and Liquid Entry 

- Never push objects of any kind into this 

product through openings as they may touch dangerous voltage points 
or short-out parts that could result in a fire or electric shock. Never spill 
liquid of any kind on the product.

WARNING: THE APPARATUS SHOULD NOT BE EXPOSED TO 
DRIPPING OR SPLASHING, AND OBJECTS FILLED WITH LIQUIDS, 
SUCH AS VASES, SHOULD NOT BE PLACED ON THE APPARATUS. 
AS WITH ANY ELECTRONIC PRODUCTS, USE CARE NOT TO SPILL 
LIQUIDS INTO ANY PART OF THE SYSTEM. LIQUIDS CAN CAUSE A 
FAILURE AND/OR A FIRE HAZARD.

IMPORTANT SAFETY INSTRUCTIONS

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Summary of Contents for M51

Page 1: ...ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ Owner s Manual M51 Direct Digital DAC ...

Page 2: ...y one way This is a safety feature If you are unable to insert the plug fully into the outlet try reversing the plug If the plug should still fail to fit contact your electrician to replace your obsolete outlet Do not defeat the safety purpose of the polarized plug 13 Power Cord Protection Power supply cords should be routed so that they are not likely to be walked on or pinched by items placed up...

Page 3: ...s radiators heat registers stoves or other products including amplifiers that produce heat 24 Headphones Excessive sound pressure form earphones and headphones can cause hearing loss 25 Battery Disposal When disposing of used batteries please comply with governmental regulations or environmental public instruction s rules that apply in your country or area Batteries battery pack or batteries insta...

Page 4: ...municipal waste End users are exhorted not to dispose waste batteries as unsorted municipal waste In order to achieve a high level of recycling waste batteries discard waste batteries separately and properly through an accessible collection point in your vicinity For more information about collection and recycling of waste batteries please contact your local municipality your waste disposal servic...

Page 5: ...e most of your investment in the M51 One more thing We urge you to register your M51 ownership on the NAD Worldwide Web site http NADelectronics com salon For warranty information contact your local distributor NAD SHALL NOT BE HELD LIABLE FOR ANY TECHNICAL OR USER INTERFACE DISCREPANCIES IN THIS MANUAL THE M51 OWNER S MANUAL MAY BE SUBJECT TO CHANGE WITHOUT PRIOR NOTICE CHECK OUT THE NAD WEBSITE ...

Page 6: ...tions settings and indicators Unlock is shown among the information displayed if no source input is connected to the particular Source If a connected source is detected the sampling rate will be displayed 4 REMOTE SENSOR Point the M50 remote control at the remote sensor and press the buttons Do not expose the remote sensor of the M51 to a strong light source such as direct sunlight or illumination...

Page 7: ...h HDMI input NOTE HDMI 1 2 and HDMI VIDEO OUT function only as direct pass through WARNING Before connecting and disconnecting any HDMI cables both the M51 and the ancillary source must be powered OFF and unplugged from the AC outlet Failure to observe this practice may cause permanent damage to all equipment connected via HDMI sockets 7 UPGRADE M51 may need a software update to be in step with th...

Page 8: ...ds of time such as when on vacation switch off the POWER switch With POWER switched off neither the front panel Standby button nor remote control s ON button can activate the M51 12 AC MAINS INPUT The M51 comes supplied with two separate detachable mains power cord Select applicable mains power cord pertinent to your region s requirement Before connecting the plug to the mains powers source connec...

Page 9: ...file or whole disc RAND Play tracks files in random order k Open or close disc tray g Stop playback Pause playback temporarily 0 Go to next track or file 9 Go to the beginning of current or previous track or file 7 8 Not applicable for current NAD CD Player models 4 Start playback 0 to 9 number buttons Direct entry of track or file number The following M50 Remote Control buttons are not applicable...

Page 10: ...lume control of the separate amplifier the M51 is linked into If Volume Setup is set to Fixed remote control s VOL 5 6 will have no effect and effectively disabled Variable When set to Variable the Volume level is directly adjustable using the remote control s VOL 5 6 button Correspondingly audio output from M51 can be adjusted by using the volume control of the separate amplifier the M51 is linke...

Page 11: ...ries are flat or incorrectly inserted Check batteries Infrared receiver IR window of M51 or IR transmitter of the remote control is obstructed Check IR windows and ensure clear line of sight from remote to M51 M51 front panel is in very bright sunlight or ambient light Reduce sunlight room lighting Remote control is set to M50 Digital Music Player remote control codes Switch remote control codes t...

Page 12: ... 16W INPUT OUTPUT TERMINALS INPUT AES EBU Coaxial Optical HDMI x 2 USB Audio Class 2 0 OUTPUT HDMIVIDEO OUT pass through Analog Unbalanced 47 ohms Analog Balanced 110 ohms DIMENSION AND WEIGHT Unit Dimensions W x H x D 435 x 78 x 296 mm Gross 17 x 3 x 11 inches NetWeight 5 8 kg 12 8 lbs ShippingWeight 9 8 kg 21 6 lbs Gross dimensions include feet extended buttons and rear panel terminals Specifica...

Page 13: ...13 ENGLISH FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ ...

Page 14: ...ED All rights reserved NAD and the NAD logo are trademarks of NAD Electronics International a division of Lenbrook Industries Limited No part of this publication may be reproduced stored or transmitted in any form without the written permission of NAD Electronics International M51_eng_OM_v08 05 12 ...

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