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NAD T 748, Owner'S Manual

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NAD T 748 Owner'S Manual Download Page 38

AMPLIFIER SECTION

 

Power output Stereo Mode 

2 x 80 W (8 ohms within rated distortion)

 

IHF dynamic power; 8 ohms 

2 x 110 W

 

IHF dynamic power; 4 ohms 

2 x 160 W

 

Power output Surround Mode 

7 x 40 W

 

Total harmonic distortion at rated power 

<0.08 %

 

IM distortion at rated power 

<0.08 %

 

Damping factor, 8 ohms  

>60 

 

Input sensitivity and impedance  

250 mV/47 kohms

 

Frequency response 

±0.5 dB (ref. 1 kHz, 20 Hz – 20 kHz)

 

Signal/noise ratio 

>100 dB (ref. rated power at 8 ohms, A-WTD)

 

Signal/noise ratio 

>90 dB (ref. 1 W at 8 ohms, A-WTD)

 

TUNER SECTION

AM SECTION
 

Tuning range 

520 kHz -1710 kHz (120 V version, 10 kHz steps)

 

 

522 kHz -1620 kHz (230 V version, 9 kHz steps)

 

Usable sensitivity 

60 dBu

 

Signal/Noise ratio 

40 dB

 

 Total Harmonic Distortion 

<1.5 %

 

Loop sensitivity 20dB S/N 

60 dBu

FM SECTION
 

Tuning range 

87.50 MHz - 108.00 MHz

 

Usable sensitivity, MONO 

<10 dBu

 

S/N Ratio MONO 

65 dB

 

S/N Ratio STEREO 

60 dB

 

Total Harmonic Distortion, MONO 

0.25 %

 

Total Harmonic Distortion, STEREO 

0.5 %

 

Channel Separation 

30 dB

 

RDS decode sensitivity 

0.5 %

POWER CONSUMPTION

 

Idle power 

50 W 

 

Standby power 

<0.5 W 

PHYSICAL SPECIFICATIONS 

 

Unit Dimensions (W x H x D)  

435 x 167 x 397 mm (Gross)

 

 

17 ¹/₈ x 6 ⁵/₈   x 12 ¹³/₁₆ inches

 

Net Weight 

11.5 kg (25.3 lbs)

 

Shipping Weight  

14.0 kg (30.8 lbs)

* - Gross dimensions include feet, volume knob and extended speaker terminals.

Specifications are subject to change without notice. For updated documentation and features, please log onto www.NADelectronics.com for the latest 
information about T 748.

Manufactured under license under U.S. Patent Nos: 5,956,674; 5,974,380; 6,226,616; 6,487,535; 7,212,872; 7,333,929; 7,392,195; 7,272,567 & other U.S. and worldwide patents issued & pending. DTS-HD, the Symbol, & 

DTS-HD and the Symbol together are registered trademarks & DTS-HD Master Audio is a trademark of DTS, Inc. Product includes software. © DTS, Inc. All Rights Reserved.

Dolby and the double-D symbol are  registered trademarks of Dolby Laboratories.  

HDMI, the HDMI logo and High-Definition Multimedia Interface are trademarks or registered trademarks of HDMI Licensing LLC.

REFERENCE

SPECIFICATIONS

38

ENGLISH

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Summary of Contents for T 748

Page 1: ... T748 AV Surround Sound Receiver ENGLISH PORTUGUÊS FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ Owner s Manual ...

Page 2: ...use caution when moving the cart apparatus combination to avoid injury from tip over 13 Unplug this apparatus during lightning storms or when unused for long periods of time 14 Refer all servicing to qualified service personnel Servicing is required when the apparatus has been damaged in any way such as power supply cord or plug is damaged liquid has been spilled or objects have fallen into the ap...

Page 3: ...BATTERIES DIRECTIVE 2006 66 EC OF THE EUROPEAN PARLIAMENT AND THE COUNCIL OF EUROPEAN UNION FOR EUROPEAN CUSTOMERS ONLY Batteries bearing any of these symbols indicate that they should be treated as separate collection and not as municipal waste It is encouraged that necessary measures are implemented to maximize the separate collection of waste batteries and to minimize the disposal of batteries ...

Page 4: ...E SETTINGS 5 IDENTIFICATION OF CONTROLS FRONT PANEL 6 REAR PANEL 8 AVR 4 REMOTE CONTROL 10 USING THE AVR 4 REMOTE CONTROL 10 LIBRARY 13 OPERATION USING THE T 748 MAIN MENU 14 ABOUT THE ON SCREEN DISPLAY OSD 14 MAIN MENU 14 LISTENING MODE 14 ADJUSTING LISTENING MODES 15 DSP OPTION 16 TONE CONTROLS 16 USING THE T 748 SETUP MENU 17 SETUP MENU 17 SOURCE SETUP 17 SOURCE SETUP NORMAL 17 SOURCE SETUP TAB...

Page 5: ...your primary listening viewing position this will ensure reliable infrared remote control communications The T 748 generates a modest amount of heat but nothing that should trouble adjacent components It is especially important that sufficient ventilation be provided DEFAULT SOURCE SETTINGS The following table lists the default SOURCE settings Note that the Audio input settings show both digital a...

Page 6: ...RESETS AM FM at the LISTENING TO AM FM RADIO section of the OPERATION page DAB mode 230V version model only Use front panel a s and ENTER buttons in combination with MENU button to select through applicable DAB menu options 4 MENU Press to activate or deactivate OSD menu At DAB mode use the MENU button in combination with the front panel a s and ENTER buttons to activate DAB menu options 5 LISTENI...

Page 7: ... T 748 to Stereo or Analog Bypass modes 11 FRONT INPUT PORTS Use these convenience jacks for occasional sources such as a camcorder video game console any analog audio or optical digital audio sources and composite video sources If your source has two output jacks indicative of stereo output insert both jacks into the T 748 s corresponding Front L item A and R MONO input to achieve stereo output a...

Page 8: ...r variants 3 MONITOR OUT Connect to the video input of a monitor television using quality dual RCA cables designed for video signals 4 COMPONENT VIDEO INPUT Connect the Component Video Input to Component Video output of compatible source components typically a DVD player BD player digital cable box or other applicable components Be sure to observe consistency in connecting the Y Pb Pr jacks to the...

Page 9: ...ing RS 232 serial cable not supplied to any Windows compatible PC to allow remote control of the T 748 via compatible external controllers 12 AUDIO PRE OUT The AUDIO PRE OUT makes it possible to use the T 748 as a pre amplifier to external power amplifiers for some or all channels Connect FRONT L FRONT R CENTER SURR R SURR L SURR BL and SURR BR to the respective channel input of a power amplifier ...

Page 10: ...ou can now press the corresponding AVR 4 control buttons applicable for the selected Device 3 INPUT SELECTORS Refer to the corresponding labels printed in the remote control faceplate and their respective assigned buttons to make use of these functions Set the DEVICE SELECTOR to AMP in order to gain access to these buttons INPUT 1 INPUT 2 up to INPUT 5 corresponds to T 748 s Source 1 Source 2 up t...

Page 11: ...her DTS or Dolby DRC setting and then use D F buttons to set up DRC level DVD BD CD PLAYER CONTROL USE WITH COMPATIBLE NAD CD PLAYER BLU RAY DISC PLAYER OR DVD PLAYER MODELS Set the DEVICE SELECTOR to BD in order to gain access to these buttons Some of the control buttons below are applicable only to specific NAD CD Player Blu ray Disc or DVD Players check the owner s manual of your NAD model for ...

Page 12: ...ied by the current radio station The applicable display contents include related DAB display information and RDS broadcast data PRESET 9 0 or D F Step up or down Preset numbers A S In combination with TUNER MODE or other compatible buttons select through applicable DAB menu options ENTER Select Preset or Tune mode at AM FM band Display signal strength at DAB mode AM FM DB Select DAB FM or AM band ...

Page 13: ...restored to its factory settings including default libraries via the following procedures 1 Press and hold ON and DELETE buttons for about 10 seconds until the AMP device button lights up 2 Within two seconds of the AMP device button lighting up release both buttons If the reset mode is successful the BD device button will flash twice TABLE OF LIBRARY CODES APPLICABLE TO AVR 4 REMOTE CONTROL LIBRA...

Page 14: ...istinct listening modes tailored for different types of recording or program material With a two channel Stereo source the following listening modes can be selected STEREO Output is directed to the front left right channels Low frequencies are directed to the subwoofer if one is present in the Speaker settings Select Stereo when you wish to listen to a stereo or monaural production such as music C...

Page 15: ...es as well as numerous examples from others Its virtues include realistic stable front stage sonic imaging and spacious but unexaggerated ambient virtual acoustics that remain faithful to the original recording ENHANCED STEREO All recordings are reproduced in stereo via the maximum speaker complement configured in the current Speaker Configuration Enhanced stereo can be useful for maximum volume f...

Page 16: ...These controls allow one to tweak on the fly the frequency response of the source during playback The control setting could be adjusted by navigating through theTone Controls OSD menu via a combination of ENTER and A S D F keys Maximum and minimum values for all three Tone Control levels are 10 dB Tone Defeat gives one the choice of varying or completely bypassing the tone control section of the T...

Page 17: ...y useful if only few Sources are used and one directly selects the Source from the front panel bypassing unused sources Select Yes to enable the particular Source or No to disable the Source NAME A new Name maybe assigned to a Source label For example if your BD player is attached to Source 1 it is possible to rename Source 1 to BD In order to rename the Source label scroll to the Name parameter P...

Page 18: ... to necessarily assign the video output of a composite video input signal to MONITOR OUT Composite video The composite video input signal can be viewed also at HDMI MONITOR OUT at a resolution setting dependent upon your TV Monitor s resolution capability Some TV Monitors will automatically display the video signal at 480p 576p if they are not capable of displaying 480i 576i A V PRESET A particula...

Page 19: ... test tone is sent to each speaker and the data is memorized by the T 748 The duration of setup may take some time depending on the number of speakers After the measurements the T 748 calculates the ideal system response for your particular room and speaker setup If some inconsistencies or discrepancies are detected during the setup the process maybe interrupted or the problem is shown in the part...

Page 20: ...e balance of your system s loudspeakers ensures that surround sound recordings whether music or film will present the balance of effects music and dialog that the artists intended Additionally if your system incorporates a subwoofer it establishes a correct relationship between the volume of the subwoofer and the other speakers and thus of low frequencies bass to other sonic elements USING AN SPL ...

Page 21: ...you hold down VOL the master volume change will run on until the key is released Since recordings vary considerably in overall average level there is no imperative to listen at any particular master volume setting A setting of 20dB may sound as loud from one CD or DVD as 10dB does from another The T 748 will power up from Standby mode at whatever master volume setting was last used however if the ...

Page 22: ...dio format as detected by the selected Source can be automatically configured and processed through the following options DOLBY DIGITAL Dolby Digital is the multi channel digital signal format developed in the Dolby laboratories Discs bearing the Dolby Digital double D symbol logo were recorded with up to 5 1 channels of digital signals reproducing a much better sound quality with dynamic and spat...

Page 23: ... format as follows Stereo If the detected audio is of Dolby stereo format you can default it to one of the following settings Stereo PLIIx Movie PLIIx Music PLIIx Game Neo 6 Cinema or Neo 6 Music Surround If the detected audio is of DTS Surround format you can default it to one of the following settings Stereo PLIIx Movie PLIIx Music Neo 6 Cinema Neo 6 Music or None None If None is selected the DT...

Page 24: ...ough maximum quality is achieved with sound tracks recorded using this system and reproduced using the DTS ES decoder when played with a conventional DTS decoder the back surround channel is automatically downmixed in the surround right and surround left channels of the surround system in such a way that none of the signal components are lost DTS ES MATRIX 6 1 In this format the additional signals...

Page 25: ...in Menu together with Speaker Setup and Display Setup configurable through Setup Menu are stored together as a single A V Preset You might create one A V Preset optimized for pop music and another for classical One more A V Preset can be set up to recall each family member s favorite setting or one for fully cinematic home theater playback and yet another one for late night movies with each A V Pr...

Page 26: ...nu go to Speaker Configuration sub menu and change Subwoofer from On to Off Front becomes Large 2 With the above settings scroll to A V Presets Setup from the SETUP MENU page Use S to access A V Presets Setup menu 3 At A V Presets page set Preset 1 to the following conditions as below Use D F to select Yes or No Then press A F and S to exit a line item and move on to the next setting OPERATION USI...

Page 27: ... Setup page set Preset 2 to the following conditions as below Use D F to select Yes or No Then press A F and S to exit a line item and move on to the next setting While at Save Settings to Setup menu line use S to save the settings above to Preset 2 When associated to a particular Source number the above preset values and settings allocated at Preset 2 preset settings as shown in the OSD captures ...

Page 28: ...WER DOWN SETUP The T 748 can be setup to automatically go to standby mode if there is no user interface interaction within the allocated time Set Auto Timer to preferred time 4hrs 8hrs 30mins Set time to allow the T 748 go to standby mode automatically in the absence of any user interface interaction Off The T 748 remains active even though no user interface interaction is detected OPERATION USING...

Page 29: ...NG PRESETS AM FM The T 748 can store up to 30 FM and 30 AM stations for immediate recall 1 To store a desired AM FM station to a preset first tune to the desired frequency see above then press AVR 4 s MEMORY button The VFD will show the next available Preset number for example Preset 4 Free in the lower line and on the upper right corner P 4 with 4 blinking 2 Press the MEMORY button again to store...

Page 30: ...t character of the name N from the alphabetical list 4 Press S button to select the character and correspondingly move forward to the next position Press A to go back to the previous character Repeat this process for each character in sequence 5 Press the INFO key to store the User Name and exit the text entry mode ABOUT RDS The Radio Data System RDS permits sending small amounts of digital inform...

Page 31: ...N connector supplied with your NAD DAB Adaptor from the DAB module s output port into the corresponding DAB module input socket on the rear panel of the T 748 Select DAB mode on the T 748 by toggling the AM FM DB button in the AVR 4 remote control NOTES The NAD DAB Adaptor DB 1 or DB 2 is not supplied with your T 748 Refer to the installation diagram printed on the carton box of the NAD DAB Adapto...

Page 32: ...ist ENSEMBLE Digital radio is broadcast as groups of data called ensemble Each ensemble contains a number of stations transmitted at a set frequency When Ensemble is selected as the mode of station order the radio stations are arranged in the order of their ensemble names NOTE Ensemble is also interchangeably termed as multiplex by other broadcast providers FAVOURITES The T 748 memorizes the top t...

Page 33: ...itializing of the NAD DAB Adaptor by going to Full Scan mode 1 While listening to a DAB broadcast press TUNER MODE button and then A S to select DAB reset Press ENTER DAB DAB reset 2 The T 748 will initiate DAB reset and immediately go on to Full Scan mode thereby enabling the T 748 to re scan again the full range of available DAB broadcasts IMPORTANT NOTICE When DAB reset option is selected all s...

Page 34: ...n such as Pop Rock Drama and the likes ENSEMBLE NAME Displays the name of the ensemble on which current service is found TIME AND DATE The current time and date as supplied by the DAB station are displayed AUDIO SIGNAL INFORMATION Displays the bit rate and audio type stereo mono or joint stereo as transmitted by the DAB broadcast provider These are set by the broadcaster to suit the type and quali...

Page 35: ... line iPod Menu and the lower line Playlists The lower line will vary depending on the current menu selected At the same time the T 748 OSD will display the whole iPod Menu selections like Playlists Artist Albums Genres Songs Composers Audiobooks and Podcasts 2 Navigate through the iPod menu selections using a combination of the A S D F buttons NOTES To exit from the iPod Menu at Source 5 iPod pre...

Page 36: ...ngs menu is at On mode and appropriate TV Signal is chosen 2 Video or photo file selections and playback procedures are managed directly from your iPod player and not through the T 748 You must exit completely from the T 748 s Setup Menu or Menu Select OSD for you to be able to navigate through your iPod player s video or photo menu options A more direct way is by going to the iPod Setup menu and ...

Page 37: ...el recording or select Dolby Pro Logic IIx Music mode Center set to OFF on Speaker Configuration menu Correct Speaker Configuration or Speaker Levels settings Center level set too low on Speaker Levels menu No Dolby Digital DTS Source s digital output is not connected to a T 748 digital input Check connections Source component not configured for multichannel digital output Check source component s...

Page 38: ...tion 30 dB RDS decode sensitivity 0 5 POWER CONSUMPTION Idle power 50 W Standby power 0 5 W PHYSICAL SPECIFICATIONS Unit Dimensions W x H x D 435 x 167 x 397 mm Gross 17 x 6 x 12 inches Net Weight 11 5 kg 25 3 lbs Shipping Weight 14 0 kg 30 8 lbs Gross dimensions include feet volume knob and extended speaker terminals Specifications are subject to change without notice For updated documentation an...

Page 39: ...39 ENGLISH PORTUGUÊS FRANÇAIS ESPAÑOL ITALIANO DEUTSCH NEDERLANDS SVENSKA РУССКИЙ ...

Page 40: ...onal 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 While every effort has been made to ensure the contents are accurate at the time of publication features and specifications may be subject to change without prior notice T748_eng_OM_v12 Feb 2013 ...

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