T 753 A/V Receiver

6 x 70W Simultaneous Minimum Continuous Power into 4 / 8 ohms 150W, 200W, 225W IHF Dynamic Power into 8, 4 and 2 ohms, respectively PowerDrive Dolby Digital, Dolby Digital EX, ProLogic II, DTS, DTS ES, DTS NEO:6, Matrix 7.1, EARS and Enhanced Stereo 5 A/V Custom Presets store unique speaker level and tone control settings Direct access speaker level adjustment for surround, center and subwoofer Stereo Bypass NAD Soft Clipping 6 A/V Inputs all S-Video and Composite, 2 Full Tape Loops Component Video, 2 Inputs and 1 Output, HDTV Compatible 1 Audio Tape Input and Output 6 Digital Inputs, 4 Coaxial, 2 TOS Link freely assignable 2 Digital Outputs, 1 Coaxial, 1 TOS Link 7.1 Analogue Input (for DVD-Audio) Speaker A + B switching (Speakers B stereo only) Multi-Source 2nd zone audio pre-out with independent source and volume ZR-2 Second Zone Remote included, discrete codes for independent zone IEC Detachable Power Cable 2 x IR Outputs, IR Input, 2 x 12V Trigger Outputs, 12V Trigger Input Preamp Outputs for all 7.1 channels (2 Subwoofers) Amplifier Input for 6 Power Amps RDS FM/AM Tuner with 30 direct access presets HTR-2 - 8 Device Illuminated Learning Remote with Macro function
The NAD T 753 is heir to many generations of award winning NAD designs. This exceptional pedigree is evident in both the look and the feel of the T 753, and it is unmistakable the moment you listen. Based on the highly successful T 752, the T 753 boasts detail improvements in virtually every area of the receiver, for a cumulative effect that is fully deserving of the new model number. Starting with a revised heat management system that reduces internal operating temperatures even under the most severe operating conditions, the T 753 includes a new volume control circuit and input switching circuit that further reduces noise and distortion. Performance Todays advanced surround sound receivers require quality in both the digital decoding stages and the analogue amplifying stages for the best overall performance. The T 753 is an excellent example of the NAD Design Teams expertise in both areas. Using the latest high speed DSP technology, NAD was able to include the newest surround formats from Dolby and DTS, as well as including NADs own highly regarded music surround mode, the EARS (Enhanced Ambient Recovery Circuit) circuit. Unlike, the typical artificially enhanced DSP modes like Club, Stadium, and Church, EARS uses DSP technology to extract the natural ambience to create surround sound from any 2 channel source inducing a warm natural reverberant effect without the artificial BOING. Surround processing is automatically detected via the digital inputs of the T 753, and the highest or most advanced form of decoding is switched in. Conversion of the decoded digital bitstream is performed with high resolution and extremely linear D/A Converters carefully selected for their performance capabilities. NADs reputation for producing power amplifiers that are both potent and musical is upheld in fine manner with the T 753. Boasting a minimum of 70 watts continuous power
per channel, the T 753 can fill even large rooms to lifelike sound levels. With NADs typical attention to detail in the all important power supply design, the T 753 can easily meet its power spec with all channels operating simultaneously. NADs exclusive PowerDrive amplifier technology automatically adjusts the power supply settings of the amplifier to the needs of the loudspeaker. This ensures remarkably dynamic and distortion-free performance with any type of loudspeaker, even demanding 4 ohm designs. Many less advanced receivers resort to performance robbing protection resistors to allow the use of 4 ohm speakers. With PowerDrive, the performance is always optimized for the actual operating condition and as a result the amplifier exhibits very low distortion and good current drive in the real world. Credit for the sound of NADs components rests squarely with our unique design approach and our experienced and very talented design team. Most companies design their products to a technical specification and a price point. While this sounds logical enough, it does not address the way the product will actually be used by the eventual owner. You dont listen to specifications, you listen to music and sound. While NAD products exhibit excellent technical measurements, we have relied on our own ears and listening experience to determine the final design of our products. Because of our unique design approach, NADs sound is simply more real sounding, adding enjoyment and excitement to your favorite films and music recordings. Flexibility The T 753 has all the flexibility required to serve as the command center for even the most sophisticated Home Theatre systems. A full suite of video switching caters to all the popular video formats (Component Video, S-Video, and Composite Video). Digital inputs and outputs are available in both coaxial and optical formats to make it easy to attach all your digital sources for playback and recording. With the T 753, NAD has made it easy to add more speakers for listening to music in additional rooms or zones. A second pair of speakers can simply be added to the front channel amplifiers and switched on or off from the remote control or front panel switch. More elaborate systems can also be created using the Multi-Source output to add additional amplifiers and speakers with the added benefit of independent source selection and volume control. A separate second zone remote is included. There are also 12V triggers to automatically switch remote zone amplifiers on and off. Thoughtful features like discrete On and Off codes, direct access to inputs and FM station presets facilitates the integration of the T 753 into elaborate remote control systems. An analogue 7.1 input is also provided for attaching a DVD-Audio player or any other yet to be developed surround decoder, making sure the T 753 does not become obsolete anytime soon. Preamp outputs and main amp inputs, a long standing NAD feature, allow the addition of more powerful amplifier channels and/or the reconfiguring of amplifier channels. (for example, adding a more powerful external amplifier to the front channels, and using the onboard front channel amp or back surround channels amps to

power a second music zone from the Multi-Source output.) Luxurious Simplicity All the capability and flexibility in the world is quite useless if the receiver becomes too complicated to be operated by every member of the family. NAD has taken special measures to make the operation of the T 753 as logical and straightforward as possible. Initial system setup is best accomplished using your television monitor and the clear and simple On Screen Display (OSD), which can be configured to also give status updates as settings are changed in everyday use. Once the T 753 is informed of your specific system set-up, all settings are stored in a non-volatile memory making this a one time task. The front panel display indicates complete information about the source being listened to or watched including selected surround mode and volume setting. The FM tuner includes 30 favourite station presets that can be custom named, or if the station supports the Radio Data System (RDS), it will automatically stream information about the station and music being played. Five independent A/V Presets can store speaker level and tone control settings for instant recall, making it easy to custom tailor your system for different types of program material. Encoded surround modes like Dolby Digital and DTS are automatically selected if the program is so encoded. The T 753 also remembers your last used settings when switched in and out of Standby mode. The included HTR-2 remote handset is a model type that is replacing the typical remotes found for TVs, VCRs DVD players etc. It has illuminated buttons for easy operation in low light environments. Remote commands for products not already included in the HTR-2s memory can be easily taught to the HTR-2. And the HTR-2s Macro function allows up to eight individual commands to be triggered by the pressing of just two keys. With this feature, all of the commands required for watching a DVD, for example, are executed automatically by the HTR-2s Macro function. Summary The T 753 offers remarkable performance and flexibility in a compact and simple to operate package. This multi-channel powerhouse will bring your favorite music and movies to life in your home entertainment room with an absolute minimum of fuss and a maximum of pure enjoyment.
Amplifier Section Power output Stereo Mode (8 within rated distortion) IHF dynamic power; 8 IHF dynamic power; 4 IHF dynamic power; 2 Simultaneous power output surround mode Total harmonic distortion at rated power IM distortion at rated power Damping factor 8 Input sensitivity and impedance Frequency response Signal/noise ratio; ref rated power 8 Signal/noise ratio; ref 1W / 8 Remote Control Tuner Section Input sensitivity Mono 50dB Stereo: Harmonic Distortion; FM Mono Harmonic Distortion; FM Stereo Signal/noise; Mono Signal/noise; Stereo Stereo separation at 1kHz Frequency response; + 1.5dB Video Section Input and output impedance Component Video Bandwidth 75 50MHz 16.1dBf 36.1dBf 0.25% 0.5% 60dB 55dB 40dB 30Hz - 15kHz 90W (19.5dBW) 2 x 150W (21.7dBW) 2 x 200W (23dBW) 2 x 225W (23.5dBW) 6 x 70W (18.45dBW) 0.08% 0.08% 60 400mV / 50k 20Hz-20kHz +/- 0.8dB >90dB >80dB Yes

Physical Specifications Dimensions (W x H x D) Net Weight Shipping Weight 17 1/8 x 6 3/4 x 16 1/2 (435 x170x 420mm) 45.1lbs (20.5kg) 48.5lbs (22.1kg)
NAD Electronics International reserves the right to change specifications or features without notice. NAD is a registered trademark of NAD Electronics International. All rights reserved. No part of this publication may be reproduced, stored, or transmitted in any form whatsoever without the written permission of NAD Electronics International. 10/03 NAD Electronics International.

www.NADelectronics.com

EASE OF USE

Despite the effort NAD has invested in the T 753 receivers sonic performance, we expended no less in making it powerfully easy to use. Its design is uniquely simple for so sophisticated a component, and the HTR 2 universal remote control is equally understandable, as are the T 753s own front-panel and on-screen displays. Its simple yet powerful system of presets permits you to fine-tune your listening setup for different conditions, sources, or listeners, and to recall these multiple parameters with a single keypress.

INTEGRATION INTEGRATION

The T 753 receiver offers extensive, flexible system-integration options through its configurable DC trigger outputs and input, and its standard-protocol IR communications links. The DC trigger outputs can be assigned to either Local and/or Zone locations.
(MULTISOURCE) SECOND ZONE (MULTISOURCE)
The T 753 receiver is equipped with a second Zone control of the Pre-amp level audio outputs from the second Zone remote control ZR 2. Completes access to volume, On/Off, and all audio analog/digital inputs, including the local input is available.

UPGRADABILITY

The T 753 receiver permits flexible system growth via individually accessible pre-out and main-in jacks for all three front channels, enabling external amplifiers to be used for any of these while still maintaining utility of the receivers on-board power-amplifier channels for additional channels, remote-room links, or any other suitable purpose. Of course, the T 753s Surround Back channel outputs let a system grow from 6.1 to 7.1 channels, simply by adding a 1- or 2-channel external amplifier. See Rear Panel (Audio Pre-Out).
ABOUT THE HTR 2 SYSTEM REMOTE CONTROL
Packed with your T 753 is the NAD HTR 2 remote control, a full-system remote especially designed to be easy to use and easy to understand. Be sure to read the section Using the HTR 2 Remote Control, to familiarize yourself with the remotes layout and operations before proceeding to setup your A/V receiver. Chances are, you will want to use your HTR 2 as your primary way to command your entire A-V system. The HTR 2 can be employed to operate additional NAD or other-brand components such as a DVD/CD player, television, satellite/HDTV tuner, VCR, or virtually anything else that operates via standard infrared remote control.

QUICKSTART

In case you simply cannot wait to experience the performance of your new NAD T 753 receiver, we provide the following Quickstart instructions to get you underway. The steps below connect your DVD player to the T 753s DVD input; be sure to read Input Setup, below.

PLAY PLAY A DVD MOVIE

Connect the T 753s composite video or S-Video MONITOR OUT jack to your TV/monitors corresponding input. (Cables not supplied) Connect your DVD players composite video or S-Video output to the T 753s corresponding DVD input. (S-Video cable not supplied) Connect the DVD players optical digital output to the T 753s optical DIGITAL IN 1 input. (Optical cable not supplied). Connect your left and right front speakers to the T 753s FRONT L and R outputs, being sure to connect red to red (+) and black to black (-), with care to avoid stray wires or strands crossing between terminals. (Connect center, surround, and surround-back speakers as well, if you like). If your system includes a powered subwoofer, connect the T 753s AUDIO PRE-OUT SW1, 2 or both jacks to its line inputs. Press in the main power switch (black pushbutton) on the T 753s rear panel (this puts the T 753 into STANDBY mode and illuminates an amber LED to indicate it is ready to receive remote commands), then use the HTR 2s [ON] key to power up the receiver. Be sure the TV/monitor is powered up, with the correct input selected. Start playback of the DVD player. Press the HTR 2 remotes [Amp] Device Selector key, and then its (red) DVD/numeric 1 key to select the DVD input. You should hear multichannel or stereo sound, and see an image on the TV/monitor. (If one or the other fails to appear, you may need to use the receivers on-screen menu system to check assignment of audio, video, and digital inputs; see Setting Up the T 753.) Enjoy the movie or music, but be sure to set aside time to read this manual thoroughly, and to set up, calibrate, and configure your T 753 carefully and completely.

FRONT PANEL

STANDBY SWITCH: Pressing this key, or the HTR 2 remotes [ON] button, will switch the receiver on, making it operational, changing the amber Standby indicator to green and illuminating the VFL display. STANDBY LED: Illuminates amber when the T 753 is in Standby mode; green when it is powered on; and flashes momentarily to indicate infrared commands received from the HTR 2 remote. Protection Mode is indicated by a red illumination, and indicates that there is a problem with your setup or the unit itself. When the fault is removed, normal operation can be resumed (this may require turning the unit off and on again). This indicator will be steadily dark only when the main POWER switch (REAR PANEL No.9) is switched off (or the receiver is unplugged from the AC supply). AM/FM: Press to toggle between the tuners AM and FM bands. FM MUTE/MODE: In the normal Mute position, only the stations with a strong signal can be listened to, and the noise between stations is muted. Pressing the [FM Mute/Mode] button allows distant (and potentially noisy) stations to be received. (See Listening to Radio) DISPLAY: Press to display the channel mode of the currently selected source (other than the internal AM/FM tuner), in the format front/rear/LFE. For example, a Dolby Digital or DTS 5.1-channel source will display 3/2.1. Note that the display shows signal channels, not speakers; for example, a 2-channel analog or digital source (whether stereo or surround-encoded) will show 2/0.0, even though the receivers <Speaker Settings> may indeed be set up to use the subwoofer with all sources, and the current Listening Mode may employ center and surround speakers. When the AM/FM tuner is the selected input, sequentially pressing DISPLAY shows the currently tuned stations RDS data, toggling between the current stations Radio Text and Station Name displays (see Listening to Radio, below).

MEMORY: Use to store tuned stations to the T 753s 40 preset-memory locations. (see Listening to Radio, below) PRESET : Press to step up or down between radio presets; 30 FM and 10 AM station presets are available. Note that this function wraps: Pressing will step from Preset 30 to Preset 1, or vice versa using the key. Unused presets are skipped over. (Note that Presets must previously have been stored; see Listening to Radio, below.) SEARCH : Press momentarily to step up or down between FM or AM frequencies. Press and hold SEARCH for more than 2 seconds to search up or down; the T 753s tuner will stop at the next sufficiently strong signal it encounters. Note that this function, too, wraps, and will continue searching up or down from one end of the AM or FM band to the other. Note that: SEARCH tunes the FM band by 0.05 MHz steps (twice the precision of most tuners and receivers). On the AM band, SEARCH moves by 10 kHz or 9 kHz steps. To change the step amount, hold in the FM MUTE/MODE and AM/FM keys simultaneously.
VFL DISPLAY: The Vacuum Fluorescent Display provides visual information on all of the T 753s important modes, settings, and functions for both MAIN and second ZONE locations.
10 VOLUME (SETUP): Turn clockwise to increase the master-volume setting; counterclockwise to lower it. The VFL and on-screen displays show the setting, displayed in decibels between 74 and +18. The VOLUME (SETUP) knob is also used to increment/decrement individual channel levels and other adjustable parameters.
11 SOURCE : Use to select one of six inputs. Press repeatedly to step through the T 753s audio/video inputs. The digital inputs are default assigned to the video input (DVD, SAT, VCR, VIDEO 4-5, CD) but can be arranged in any order using the T753s SETUP OSD. The chart below shows the default assignments; see Input Setup. Digital Input Jack OPT 1 OPT 2 Coax 3 Coax 4 Coax 5 Coax 6 Default Assignment DVD SAT VCR VIDEO 4 VIDEO 5 CD
NOTE: Digital inputs take precedence: The T 753 will automatically play any active signal present at the selected digital input; if none is present, it will fall back to the analog audio input assigned to that Video input. Digital inputs can be selected OFF to listen to the analog input of a source with an assigned digital input. 12 SURROUND MODE: Use to select the T 753s Listening Mode. Press repeatedly to step through the T 753s Listening Modes. See About the T 753s Listening Modes, below. NOTE: Depending on the format of the currently selected input (digital or analog; stereo or multichannel), different modes will be available. See About the T 753s Listening Modes, below. 13 LEVELS: Press repeatedly to select the channel, and then use the VOLUME(SETUP) knob to adjust the levels of the T 753s 7 channels /pairs in turn: front-left, -center, right; surround; surround back; subwoofer. The selected channel appears on the VFL and on-screen displays; use the VOLUME(SETUP) knob to adjust its level relative to the others over a range of 12 dB. Channel levels may also be adjusted via the on-screen menus; see Adjusting Channel Levels, below. NOTE: The HTR 2 remotes [Surr.], [Center], and [Sub] / keys provide direct access to those channels relative levels, however in this case the level changes are only temporary and are not saved in memory. 14 TONE DEFEAT: Press to disable the tone controls; press again to re-enable them for instance, to compare a tone setting to unmodified sound. NOTE: While TONE DEFEAT is engaged, the TONE CONTROLS key will have no effect. 15 TONE CONTROLS: Press to adjust treble using the VOLUME (SETUP) knob over a 10 dB range; press again to adjust bass, and a third time to exit tone-control adjustment. 16 SPEAKERS A & B: Press either speaker A or B or both to select the set of speakers you wish to listen to. The Speakers A are the main set of 6 multichannel front and surround speakers. The Speaker B are an auxiliary set for remote locations such as other rooms of your home. For Speaker B selection all surround sound sources are downmixed to stereo as shown in the florescent display. 17 VIDEO 6 INPUT: Use these convenience jacks for occasional sources, such as a camcorder, portable MP3 or tape player, or a video game console, or any other analog audio, or composite or S-Video video source. Select the Video 6 input using the HTR 2 remote, or the front-panel VIDEO 6 key. 18 PHONES: Accepts stereo headphone using a standard 1/4-inch stereo phone plug (use a suitable adapter for headphones equipped with a smaller plug); set the Listening Mode to Stereo. Plugging in headphones automatically mutes output from all channels speaker and pre-out jacks (but not from the record-out jacks of TAPE, VCR, or VIDEO 4). NOTE: For headphone listening the front left/right speakers must be set to Large on the OSDs Speaker Settings page, otherwise headphone bass response will be restricted. NOTE: Plugging in headphones will automatically switch the T 753 to Stereo mode.

SETTING UP THE T 753

STAR ARTED GETTING STARTED
Before you make the first connection to your T 753, you should have the arrangement of your listening room/ home theater components and furniture mapped out, at least initially. Unfortunately, a discussion of the vital questions of loudspeaker placement and listening/viewing positions is beyond our scope here. Suffice it to say that these two questions will influence your system's ultimate performance every bit as powerfully as your selection of electronics and speakers. Your NAD audio specialist dealer will be happy to advise you, and to recommend reference materials. NOTE: You will need the HTR 2 remote handset to configure your T 753. See Using the HTR 2 Remote, below.
DEALING WITH HUM AND NOISE
Hum and noise sometimes prove a challenge in complex, multichannel audio systems. Note these considerations to help prevent hum and noise problems: Power all your system's audio component from AC outlets originating from the same circuit of your house wiring. As far as possible, power all audio components from the same outlet, or adjacent outlets on the same circuit. It may be useful to power video displays (and computers!) from outlets on another circuit, especially if that circuit is supplied from the other "leg" of the house wiring. Do not bundle analog audio cables with AC power cables, or with coaxial digital-audio cables. It is best if they cross at right angles if they must be in close proximity. Employ high-quality, well-shielded audio cable throughout, and ensure that all connections are secure. A pencil-eraser can be used to burnish copper- and gold-plated contacts to ensure good, low-resistance contact; specialized contact-cleaners can also be useful. Avoid unnecessary unplugging and re-plugging, since the gold (or copper) contact plating of typical cable connectors, even very high-quality ones, is very thin and easily worn. Track down hum/noise problems one component at a time, working backwards from the receiver. That is: Connect the speakers to the receiver only, and check for hum. Then connect one component only (a CD player, for example) alone, with no other components connected and check for hum. Connect additional components, one at a time, to the receiver and check for hum. At each stage, if hum/noise appears, examine the audio cabling and AC-power routing of the new component. In some cases, moving the new component's AC cord to a different outlet, or installing a ground-lift (3-to-2-prong adapter) on its power cord, will eliminate the hum.
ABOUT THE ON-SCREEN DISPLAYS (OSD) AND FRONT-PANEL READOUT
The T 753 receiver employs a simple, self-explanatory system of on-screen display "menus" that will appear on the connected video monitor/TV. These are required during the setup process (and are useful in day-today operation), so be sure to connect the monitor/TV before proceeding with setup. NOTE: The on-screen displays are carried on both the S-Video and composite MONITOR OUT jacks, but are not incorporated into the component-video output.

LISTENING MODE

From the OSDs main <Setup> menu select the <Listening Mode> line using the HTR 2 remote's [ / ], and [Enter] keys. Using the [ / ] and [ / ] keys you can select mode variations, and adjust various parameters, depending on the current Listening Mode. For more information, see About the T 753's Listening Modes, below. NOTE: Listening Mode is part of the T 753s Preset system. See Creating and Using Presets, below; NOTE: The Listening Mode used the last time a given input was selected will be recalled the next time that input is selected, unless overridden by a Dolby Digital or DTS signal, which automatically invoke their native Listening Modes.
CHANNEL-BALANCE (TEST) SETUP
Adjusting the relative 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 METER

It is quite practical to perform the T 753 Level setup routines "by ear," and careful work will produce acceptably accurate results. However, the use of an inexpensive sound-pressure level (SPL) meter, such as Radio Shack part number 33-2050, makes this task easier, more accurate and more repeatable. Ownership of such a meter could prove a valuable audio tool; your NAD audio specialist may be able to help you with temporary use of a meter. The SPL meter should be placed at the primary listening position, at approximately the height of the seated listener's head. A tripod is helpful, but with a little duct tape almost anything a pole lamp, music-stand, or ladder-backed chair, for example can do as well. Just be sure that no large acoustically reflective surfaces obstruct or are near the microphone element. Orient the meter with its microphone (usually at one end) pointing straight up toward the ceiling (not forward toward the speakers) and ensure that its "C" weighting scale is selected. Set the meter to display 75 dB SPL. (On Radio Shack meters this necessitates either setting the meter to its 80 dB range and taking your readings at the -5 point, or selecting the 70 dB range and reading at the +5 point.)

ADVANCED OPTIONS

The T 753 allows for setting of special listening and system options. These are usually one-time options settings and once set do not need to be changed. Main/Zone DSP Decoding From the OSDs main <Setup> menu, select the DSP decoding options. There are two options, 5.1 and 7.1 decoding. With 7.1 decoding, the Zone output will be switched off. Dolby Digital Surround EX Decoding Select either Auto or On. If On is selected, the Surround EX decoding will be forced on thus Dolby Digital 5.1 will become 6.1 matrix. DTS-ES Matrix Select either Auto or On. If On is selected, the ES Matrix will be forced on thus DTS 5.1 will become 6.1 matrix. BACKGROUND to ON or OFF When ON is selected, on-screen menus will appear against a black background, obscuring the current video program (if any), when OFF is selected menus will appear in white text superimposed upon the current video program (if any). TEMP OSD TEMP OSD. When ON is selected, the temporary OSD such as volume, and speaker levels are displayed. When OFF no temporary OSD will be displayed.
CREATING AND USING PRESETS
The T 753s simple but powerfully flexible system of Presets allows you to customize virtually every aspect of your audio-video playback, and recall them with a single key-press. Every parameter of T 753 operation that is available from the main <Setup> menu input settings, level settings, delay settings, speaker settings, and listening mode selection and adjustments is stored, together, as a single Preset. You might create one Preset optimized for pop music and another for classical, or Presets that recall each family members favorite setup, or one for fully cinematic home-theater playback and another for late-night movies, with each Presets surround mode, channel levels, and speaker-setup fine-tuned to a particular scenario or preference.
CREATING CREATING PRESETS
Creating a Preset consists simply of storing a complete set of all settings accessible from the main <Setup> menu, including Tone Control settings. To save a collection of settings to a Preset, use the HTR 2 remotes [ / ] keys to scroll to the to main <Save to Preset> item. Use [ / ] to scroll to the desired Presets line [1-5]; <Stored> will be flashing. Now press the HTR 2s [Enter] to store the Preset; <Stored> will be stop flashing, confirming that the Preset has been stored. NOTE: The selected Preset remains in force until you select a different Preset. NOTE: It is strongly recommended to leave Preset 1 empty; that is, memorized with no changes at all made to the calibrated values you have entered on all of the <Setup> menu lines. This will make returning to your calibrated setup defaults easy.

MUTING THE SOUND

Use the HTR 2 remote's <Mute> key to silence all channels completely. Muting is always available, regardless of source or listening mode selections. Note that: Cycling through Standby or powering off does release muting; the T 753 will return from Standby with muting off if Standby was invoked with muting on. Changing input or listening-mode selections does not release muting. Adjusting the master-volume upward via the HTR 2 or the front-panel knob automatically releases the mute function.

LISTENING TO RADIO

The T 753s internal AM/FM tuner offers very high quality sound from radio broadcasts. Note that reception and sound quality will always be dependent to a degree on the type of antenna(s) used, as well as proximity to the broadcast origin, geography, and weather conditions.

ABOUT ANTENNAS

The supplied ribbon-wire FM antenna can be connected to the rear-panel FM-antenna input using the balun included adapter, and should be fully extended to form a T. This folded-dipole antenna will usually work best oriented vertically, with the arms of its T full outstretched and arranged perpendicular to the origin of the desired broadcast. There are no rules, however, and experimenting freely with antenna placement and orientation may yield the clearest sound and lowest background noise. In areas of poor FM reception, an exterior FM antenna can improve performance dramatically. If radio listening is important to you, consider consulting an antenna installation professional to optimize your system. The supplied AM loop antenna will usually provide adequate reception. However, an exterior AM antenna can be used to improve reception; consult an antenna professional for more information.

SELECTING THE RADIO

Press the AM/FM key on the T 753 front panel, the HTR 2s orange [TUNER] (the numeric 9 key), or the yellow [AM] and [FM] keys to select the receivers radio mode. Each subsequent press of either key will toggle the unit between its FM and AM bands.

STA TUNING STATIONS

Press SEARCH on the front panel momentarily to step up or down between FM or AM frequencies. Press and hold SEARCH for more than 2 seconds to search up or down; the T 753s tuner will stop at the next sufficiently strong signal it encounters. See Front Panel, above. Pressing the SEARCH keys momentarily during the search process will stop the search. After first pressing amber [TUNER] mode-select key on the HTR 2 to set the remote to control radio functions, press [TUNE DOWN] or [TUNE UP] on the HTR 2 (yellow lettering); hold in to perform slow manual search, press momentarily to automatically search (see above).

SETTING RADIO PRESETS

The T 753 can store as many as 40 of your favorite radio stations for immediate recall; 30 FM stations and 10 AM. To store a radio preset, first tune the desired frequency (see above), then press the front panel MEMORY key. Press the PRESET key to select the preset number to be assigned. Then press the MEMORY key once again. The STORED message will appear in the VFL Display. NOTE: The Radio Presets must be stored from the front panel; this setup function is not accessible from the HTR 2 remote. NOTE: The T 753s Radio Presets are distinct from its global Presets that can be used to manage listening and setup modes and levels. See Using Presets, above.

SELECTING RADIO PRESETS

Press PRESET on the front panel to step up or down between presets; press and hold PRESET scroll continuously up or down. The HTR 2 remotes [PRESET / ] keys work similarly. to
CHOOSING THE FM MUTE / MODE
The front-panel FM MUTE/Mode key is a dual-purpose control. First, it toggles the T 753 between stereo mute and unmated stereo reception (assuming that a multiplex-stereo station of sufficient strength is tuned). FM Mute eliminates noise from empty FM frequencies but also mutes very weak or distant stations; it also causes the search function to skip them. Toggling off the FM Mute will result in reduced noise if the FM station signal level is less than the FM Stereo threshold (since mono FM is inherently less noise-prone), though at the sacrifice of the stereo effect. NOTE: The one can store the same channel in two preset locations; one with FM Mute On, and with FM Mute Off. NOTE: Toggling between FM Mute on or off also defeats the T 753s FM muting circuit. If you wish to listen to a particularly weak or distant broadcast, toggle off the FM Mute and tune it manually.

ABOUT RDS

The Radio Data System (RDS) permits compatible FM receivers to display text determined by the broadcaster. The T 753 supports two RDS modes, station-name (PS mode) and radio-text (RT mode). However, not every FM station incorporates RDS in its broadcast signal; in most areas you will find from one to several RDSenabled stations, but it is by no means impossible that your favorite stations will not be broadcasting RDS data.

DIGITAL DOLBY DIGITAL EX

Using a Matrix decoder this method creates the back channel (sometimes also called the surround center) by means of signals on the left and right surround channels recorded in Dolby Digital 5.1, reproduction being provided in Surround 6.1. This method should be selected with sources bearing the DOLBY/Digital -EX symbol, recorded in Dolby Digital Surround EX. With this additional channel you will experience improved dynamics and a better sensation of movement within the sound field. If media sources recorded in Dolby Digital EX are decoded with a Digital EX decoder, the format is detected automatically, and the Dolby Digital EX mode is selected. However, some media sources recorded in Dolby Digital EX can be detected as simple Dolby Digital media sources. In this case Dolby Digital EX should be selected manually.

DOLBY PRO LOGIC

Dolby Pro Logic is a surround format consisting of four channels (front right, centre, front left and surround. Media sources with the Dolby Surround feature produce a theatrelike surround sound. The surround channel is monophonic, but it is reproduced in both surround speakers.
DOLBY PRO LOGIC II SURROUND
This mode applies conventional 2-channel signals such as digital PCM or analog stereo signals as well as Dolby Surround signals, etc. to surround processing which offers improvements over conventional Dolby Pro Logic circuits. Dolby Pro Logic II surround has two decoding modes:

DOLBY PRO LOGIC II MOVIE

Designed for the cinema, this method highlights the cinematic sound quality by adding a process that emphasises the special effects of action scenes.

DOLBY PRO LOGIC II MUSIC

Designed for music, this method highlights the sound quality of music by adding a process that emphasises the musical effects. Manufactured under license from Dolby Laboratories. Dolby, Pro Logic, and the double D symbol are registered trademarks of Dolby Laboratories.
ABOUT THE T 753'S LISTENING MODES
The T 753 receiver offers nine distinct listening modes, tailored for different types of recordings or program material. The table below lists which modes are available to what input signals. With a two-channel (STEREO) source the following listening modes can be selected: Stereo Downmix All output is directed to the left/right-front 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 a music CD or FM broadcast, without surround enhancement. Stereo recordings, whether in PCM/digital or analog form and whether surround-encoded or not encoded, are reproduced as recorded; multichannel digital recordings (Dolby Digital and DTS) are reproduced in Downmix mode via the left- and right-front channels only, as Lt/Rt (left/right-total) signals. Dolby Pro Logic Dolby Pro Logic II (PLII) Two-channel recordings, whether stereo or surround-encoded, are reproduced with Dolby Pro Logic, or ProLogic II surround processing, yielding output to left-, center-, and right-front channels, and discrete left/right surround channels (assuming these are present in the current <Speakers Setup>. PLII does not employ the surround back speakers (if any). NOTE: ProLogic II is a more recent evolution of the original Dolby ProLogic surround processing that yields more stable imaging and full bandwidth sound to the rear channels in Movie mode, offering sound that is more similar to Dolby Digital decoding. The T 753 provides two PLII variations: MOVIE and MUSIC. See Adjusting Listening Modes, below. DTS Neo:6 Two-channel recordings, whether stereo or surround-encoded, are reproduced with Neo:6 surround with output to left, center-, and right-front channels and discrete left/right surround channels (assuming these are present in the current <Speakers Setup>). The T 753 provides two DTS Neo:6 variations: CINEMA and MUSIC. See Adjusting Listening Modes, below. EARS Two-channel recordings, whether stereo or surround-encoded, are reproduced with proprietary NAD surround processing with signals output to the left, center-, and right-front channels and discrete left/ right surround channels, plus subwoofer (assuming these are present in the current <Speakers Setup>); EARS does not employ the surround back speakers (if any). EARS extracts the natural ambience present in nearly all well-produced stereo recordings. It does not synthesize any ambience or other sonic elements and thus remains truer to the sound of the original musical performance than most other music-surround options. Select EARS for listening to stereo music recordings and broadcasts. EARS produces a subtle but highly natural and believable ambience from nearly all "natural-acoustic" stereo recordings; typically, these include classical, jazz, and folk genres as well as numerous examples from others. It's virtues include a realistic, stable "front-stage" sonic imaging and spacious but unexaggerated ambient "virtual acoustics" that remain faithful to the original recording. Matrix 7.1 Two-channel recordings, whether stereo or surround-encoded, are reproduced with proprietary surround processing via the full suite of front, surround, and one or two surround back speakers (if these are present in the current Speaker Settings setup), plus subwoofer (if any). Matrix 7.1 can produce a very natural, cohesive all-channels surround from high-quality recordings, both for stereo music and for surround-encoded music or movie programs. Enhanced-Stereo 1 (ST1) All recordings reproduced in stereo via the maximum speaker complement configured in the current <Speakers Setup>. ST1 can be useful for maximum volume from all channels, or for multi-speaker background music (cocktail party) listening.

SURROUND SOUND CHANNEL CHART
The following table shows which channels work when a particular mode is selected:

X= X* X** X*** LFE

Speaker channel available. Only if selected in Speaker Setup Menu. Must be selected to access this Mode. Must have both Back Surround speakers selected. Low Frequency Effects are not present on all films.
Finally, make sure all the speaker terminals are tightened particularly if using banana plugs.
FLY ADJUSTING CHANNEL LEVELS ON THE FLY
You can make changes to the relative levels of center, surround, and subwoofer outputs. This may prove useful in a number of circumstances; for example, to increase (or tone down) a film's dialog level by raising (lowering) the center channel, or to reduce excessive deep bass (or enhance deep bass) by lowering (raising) the subwoofer level without having to go into the CHANNEL LEVELS OSD menu.

TO ADJUST CHANNEL LEVELS

Use the HTR 2 remote's [Surr.], [Center], and [Sub] [ / ] keys for direct-access level adjustment of these channels, over a range of 12 dB. You can also adjust all channel levels using the front panels Levels key (see Front Panel, above), or via the <Channel Levels> line of the main <Setup> menu. NOTE THAT: The surround back channels (if any) adjust in lockstep with the surround channels; Channel Level changes made via the HTR 2 are retained even if you cycle the receiver through Standby. Channel Levels are part of the T 753s Preset system. See Creating and Using Presets, below. Level settings are added/subtracted to the setup levels established by the T 753 level-calibration routine, invoked by the HTR 2 [Test] key. However, selecting any Preset will revert channel levels to those stored in the preset.
ADJUSTING THE TONE CONTROLS
The T 753 bass and treble controls are adjusted using the front panels TONE CONTROLS (and TONE DEFEAT) buttons; see Front Panel, above. NOTE: Bass/treble settings affect only the front left/right channels, and are active in all listening modes. Bass/treble settings are part of a Preset: Bass/treble settings in effect when a Preset is stored will be reinstated whenever that Preset is recalled.
USING THE HTR 2 REMOTE CONTROL

You may copy a command from any HTR 2 key to any other. To copy a key function, after entering the Learning Mode, and pressing the desired key to be copied to, simply press the device key from which you wish to copy, having first pressed its Device Selector key if it resides on another page. The status LED will turn green; press the Device Selector key again to exit Learning Mode. Example: Copy the Pause command from the CD page to the AMP [ | | ] key: On the HTR 2, simultaneously press-and-hold [AMP] and [] (record); the Learn LED turns steady green. Press [ | | ] (pause); the Learn LED turns amber. Press [CD]; press [ | | ] (pause); the Learn LED turns green. Press [AMP] again to exit the learning mode. NOTE: The copy and punch-through functions are similar. However, if you copy a command and then subsequently delete, or over-write the original (source-key) command , the copied-to keys command remains unchanged. If you punch-through to a command and then delete or over-write the original key, the punched-through functions also change accordingly.

MACRO COMMANDS

A macro command is a series of two or more remote codes issued automatically from a single keypress. You might use a macro to automate a simple command sequence, such as, Turn on the DVD player and then press play. Or you might compose an elaborate macro to power up an entire system, select a source, choose a Listening Mode, and begin playbackagain, all from a single keypress. The HTR 2 can store one macro on each of its function keys (these exclude the Device Selector keys). NOTE: Macros are independent of the currently selected device.

RECORDING MACROS

To record a macro, simultaneously press-and-hold for 3 seconds both the [MACRO] key and the HTR 2 function key to which you wish to assign the macro, until the status LED turns green. The macro button will also light up. Press the sequence of function keys to be recorded into the macro, being sure to first press the requisite Device Selector key for each function (you may switch devices while recording the macro as many times as necessary), allowing you to create macro containing commands from more than one Device Selector page. When you have finished entering the desired command sequence, press [MACRO] again to store the macro; the Learn LED and [MACRO] key illumination will turn off. NOTE: Each macro can store a maximum of 64 command steps. If you exceed this number, the macro will be stored automatically after the 64th command is added. Example: Record a Macro to the [0] key to Turn on the T 753, Select the DVD Input, and Commence Playback: On the HTR 2, simultaneously press-and-hold [MACRO] and [0] (numeric zero); the Learn LED turns steady green. Press [AMP]; press [ON]; press [1] (red DVD); press [DVD]; press [play] (the Learn LED blinks as each step is added). Press [MACRO] again to exit the macro-record mode. To clear a macro, perform the above steps without entering any functions.

SUMMARY OF HTR 2 MODES

Mode Learn/Copy/Punch Through Delete Mode Macro Record Library Mode Back Light Timeout Factory Reset Keys To Press (for 3 seconds) Device Key + Record Key Device Key + Return Key Macro Key + Function Key Device Key + Preset Key Display Key + Digit Key (see Factory Reset, above)
USING THE ZR 2 REMOTE CONTROL
The ZR 2 remote control is a discrete compact remote for controlling the T 753 from various rooms other than the main room. The ZR 2 remote allows full separate control of the source selection irrespective to the main room. This means the zone input may be completely different, audio and video, from the main input and thus corresponding volume levels as well. If one wishes to enjoy the same source, as the main room the ZR 2 remote has a [LOCAL] button to allow simultaneous listening, but with full separate volume levels. The T 753s front florescent display will show activity of the zone control so that main room occupants are aware of the zone remote activity. Furthermore if there is no main room activity, only the zone indicator will be active in the T 753s fluorescent display.

TRIGGER SETUP

The T 753s rear-panel TRIGGER output can be assigned to any of its six AV inputs: DVD, SAT, VCR, VIDEO 4-6. Whenever the assigned input is selected, either manually or by recalling a Preset, the TRIGGER output will produce +12 V DC, which can be used to activate a connected component or system. See your NAD audio specialist for more information.
ASSIGNING THE TRIGGER OUTPUT
From the OSDs main <Setup> menu, select the <Input Settings> item using the remote's [ / ] and [ / ] keys. One can select the video input (DVD, SAT, VCR, or VIDEO 4-6) you wish to assign to the TRIGGER 1 output. Select <Save and Exit> to store the trigger assignment.

TROUBLESHOOTING

CONDITION
NO SOUND FROM ALL CHANNELS

POSSIBLE CAUSE(S)

AC power unplugged Power not switched on Outlet is unpowered Tape Monitor is engaged

POSSIBLE SOLUTIONS(S)

Check AC cable, connection, and outlet Disengage Tape Monitor
NO SOUND FROM SOME CHANNELS
Faulty/missing cables <Speaker Settings> channel (s) set to "None" Power-amp or speaker-connections faulty
Check cables Check <Speaker Settings> menu Check power amp, cabling, and speakers
NO SOUND FROM SURROUND CHANNELS
No surround listening mode is engaged Surround-channels set to "None" on <Speaker Settings> menu Surround-channels level set too low on <Channel Levels> menu
Select appropriate listening mode Correct <Speakers Settings> or <Channel Levels> settings