OWNER'S MANUAL

2000 NAD ELECTRONICS LTD. T 751
IMPORTANT SAFETY INSTRUCTIONS

CAUTION ATTENTION:

RISK OF ELECTRIC SHOCK DO NOT OPEN
RISQUE DE CHOC ELECTRIQUE NE PAS OUVRIR
CAUTION: TO REDUCE THE RISK OF ELECTRIC SHOCK, DO NOT REMOVE COVER (OR BACK). NO USER SERVICEABLE PARTS INSIDE. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL
Warning: To reduce the risk of fire or electric shock, do not expose this unit to rain or moisture. The lightning flash with an arrowhead symbol within an equilateral triangle is intended to alert the user to the presence of uninsulated dangerous voltage within the products enclosure that may be of sufficient magnitude to constitute a risk of electric shock to persons.
ATTENTION POUR VITER LES CHOC ELECTRIQUES, INTRODUIRE LA LAME LA PLUS LARGE DE LA FICHE DANS LA BORNE CORRESPONDANTE DE LA PRISE ET POUSSER JUSQUAU FOND. CAUTION TO PREVENT ELECTRIC SHOCK MATCH WIDE BLADE OF PLUG TO WIDE SLOT FULLY INSERT.
If an indoor antenna is used (either built into the set or installed separately), never allow any part of the antenna to touch the metal parts of other electrical appliances such as a lamp, TV set etc.
The exclamation point within an equilateral triangle is intended to alert the user to the presence of important operating and maintenance (servicing) instructions in the literature accompanying the product.

CAUTION POWER LINES

Any outdoor antenna must be located away from all power lines.
OUTDOOR ANTENNA GROUNDING
Do not place this unit on an unstable cart, stand or tripod, bracket or table. The unit may fall, causing serious injury to a child or adult and serious damage to the unit. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer or sold with the unit. Any mounting of the device on a wall or ceiling should follow the manufacturers instructions and should use a mounting accessory recommended by the manufacturer. An appliance and cart combination should be moved with care. Quick stops, excessive force and uneven surfaces may cause the appliance and cart combination to overturn. Read and follow all the safety and operating instructions before connecting or using this unit. Retain this notice and the owners manual for future reference. All warnings on the unit and in its operating instructions should be adhered to. Do not use this unit near water; for example, near a bath tub, washbowl, kitchen sink, laundry tub, in a wet basement or near a swimming pool. The unit should be installed so that its location or position does not interfere with its proper ventilation. For example, it should not be situated on a bed, sofa, rug or similar surface that may block the ventilation openings; or placed in a built-in installation, such as a bookcase or cabinet, that may impede the flow of air through its ventilation openings. The unit should be situated from heat sources such as radiators, heat registers, stoves or other devices (including amplifiers) that produce heat. The unit should be connected to a power supply outlet only of the voltage and frequency marked on its rear panel. The power supply cord should be routed so that it is not likely to be walked on or pinched, especially near the plug, convenience receptacles, or where the cord exits from the unit. Unplug the unit from the wall outlet before cleaning. Never use benzine, thinner or other solvents for cleaning. Use only a soft damp cloth. The power supply cord of the unit should be unplugged from the wall outlet when it is to be unused for a long period of time. Care should be taken so that objects do not fall, and liquids are not spilled into the enclosure through any openings. This unit should be serviced by qualified service personnel when: A. The power cord or the plug has been damaged; or B. Objects have fallen, or liquid has been spilled into the unit; or C. The unit has been exposed to rain or liquids of any kind; or D. The unit does not appear to operate normally or exhibits a marked change in performance; or E. The device has been dropped or the enclosure damaged. If an outside antenna is connected to your tuner or tuner-preamplifier, be sure the antenna system is grounded so as to provide some protection against voltage surges and built-up static charges. Section 810 of the National Electrical Code, ANSI/NFPA No. 70-1984, provides information with respect 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. a. Use No. 10 AWG (5.3mm2) copper, No. 8 AWG (8.4mm2) aluminium, No. 17 AWG (1.0mm2) copper-clad steel or bronze wire, or larger, as a ground wire. b. Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 4-6 feet (1.22 - 1.83 m) apart. c. Mount antenna discharge unit as close as possible to where lead-in enters house. d. Use jumper wire not smaller than No.6 AWG (13.3mm2) copper, or the equivalent, when a separate antenna-grounding electrode is used. see NEC Section 810-21 (j). EXAMPLE OF ANTENNA GROUNDING AS PER NATIONAL ELECTRICAL CODE INSTRUCTIONS CONTAINED IN ARTICLE 810 - RADIO AND TELEVISION EQUIPMENT.

DO NOT ATTEMPT SERVICING OF THIS UNIT YOURSELF. REFER SERVICING TO QUALIFIED SERVICE PERSONNEL.
Upon completion of any servicing or repairs, request the service shops assurance that only Factory Authorized Replacement Parts with the same characteristics as the original parts have been used, and that the routine safety checks have been performed to guarantee that the equipment is in safe operating condition. REPLACEMENT WITH UNAUTHORIZED PARTS MAY RESULT IN FIRE, ELECTRIC SHOCK OR OTHER HAZARDS.
NOTE TO CATV SYSTEM INSTALLER: This reminder is provided to call the CATV system installers attention to Article 820-22 of the National Electrical Code that provides guidelines for proper grounding and, in particular, specifies that the ground cable ground shall be connected to the grounding system of the building, as close to the point of cable entry as practical.

SAFETY WARNING

CLASS 1 LASER PRODUCT LUOKAN 1 LASERPLAITE KLASS 1 LASERAPPARAT
THIS DIGITAL APPARATUS DOES NOT EXCEED THE CLASS B LIMITS FOR RADIO NOISE EMISSIONS FROM DIGITAL APPARATUS AS SET OUT IN THE RADIO INTERFERENCE REGULATIONS OF THE CANADIAN DEPARTMENT OF COMMUNICATIONS. LE PRESENT APPAREIL NUMVERIQUE NEMENT PAS DE BRUITS RADIOELECTRIQUES DEPASSANT LES LIMITES APPLICABLES AUX APPAREILS NUMERIQUES DE LA CALSSE B PRESCRITES DANS LE REGLEMENT SUR LE BROUILLAGE RADIO ELECTRIQUE EDICTE PAR LE MINISTERE DES COMMUNICATIONS DU CANADA.
WARNING - INVISIBLE LASER RADIATION WHEN OPEN AND
INTERLOCKS DEFEATED. AVOID EXPOSURE TO BEAM.
VORSICHT! - UNSICHTBARE LASERTRAHLUNG TRITT AUS,
WENN DECKEL GEFFNET UND WENN SICHERHEITSVERRIEGELUNG BERBRCKT IST. NICHT DEM STRAHL AUSSETZEN.
ADVARSEL - USYNLIG LASERSTRLING VED BNING, NR SIKKERHEDSAFBRYDERE ER UDE AF FUNKTION. UNDG UDSTTELSE FOR STRLING. ADVARSEL - USYNLIG LASERSTRALING NR DEKSEL PNES OG SIKKERHEDSLS BRYTES. UNNG EKSPONERING FOR STRLEN. VARING - OSYNLING LASERSTRLNING NR DENNA DEL R PPNAD OCH SPRRAR R URKOPPLADE. STRLEN R FARLIG. VARO! - AVATTAESSA JA SUOJALUKITUS OHITETTAESSA OLET ALTTINA NKTMTONT LASERSTEILYLLE. L KAISO STEESEEN.
Manufactured under license from Dolby Laboratories. Dolby, Pro Logic and the Double-D symbol are trademarks of Dolby Laboratories. Confidential unpublished works. 1992-1997 Dolby Laboratories, Inc. All rights reserved.
REAR PANEL CONNECTIONS (Figure 1.)
FRONT PANEL CONNECTIONS (Figure 2.)
2000. NAD ELECTRONICS LTD. T 751
REMOTE CONTROL (Figure 3.)

(Figure 4.)

(Figure 5.)

NAD 2000 T751 RC

(Figure 6.)
Batterij niet weggooien maar inleveren als KCA

SIMPLE T 751 SYSTEM (Figure A.)

TV VIDEO STEREO AUDIO

TAPE IN / OUT

VCR IN / OUT

SOPHISTICATED T 751 SYSTEM (Figure B.)

AUDIO / GAMES IN

SUBWOOFER
THE OPTICAL DIGITAL INPUT 1 IS LINKED TO THE VIDEO 1 INPUT.
THE COAXIAL DIGITAL INPUT 2 IS LINKED TO THE VIDEO 2 INPUT.

VIDEO STEREO AUDIO

COMPOSITE VIDEO OUT S VIDEO OUT

DIGITAL COAXIAL OUT

NAD T 751 SURROUND SOUND RECEIVER
FM ANTENNA A ribbon wire FM antenna is included and should be connected to the FM connector at the rear of the unit (Fig. 4) using the balun adapter supplied. The ribbon aerial should be mounted on a vertical surface and placed so that it forms a T. Experiment with placement of the antenna to find the position that gives the best signal strength and lowest background noise. An inadequate FM signal normally results in high levels of hiss, especially in stereo, and interference from external electrical sources. In areas of poor FM reception, the tuner sections performance can be improved by using an externally mounted FM antenna. A qualified aerial installer will be able to advise and fit a recommended aerial for your reception conditions.

NOTES ON INSTALLATION.

Your NAD T 751 should be placed on a firm, level surface. Avoid placing the unit in direct sunlight or near sources of heat and damp. Allow adequate ventilation. Do not place the unit on a soft surface like a carpet. Do not place it in an enclosed position such a bookcase or cabinet that may impede the air-flow through the ventilation slots. Make sure the unit is switched off before making any connections. The RCA sockets on your NAD T 751 are color coded for convenience. Red and white are Right and Left audio respectively, orange for digital input, yellow for Video Composite and NAD Link. Use high quality leads and sockets for optimum performance and reliability. Audio RCA leads will function correctly for video signals, although it is recommended to use dedicated video leads where possible. For the digital inputs use dedicated leads for digital signal transfer. Ensure that leads and connectors are not damaged in any way and all connectors are firmly pushed home. For best performance, use quality speaker leads of 16 gauge (1.5mm) thickness or more. If the unit is not going to be used for some time, disconnect the plug from the AC socket. Should water get into your NAD T 751, shut off the power to the unit and remove the plug from the AC socket. Have the unit inspected by a qualified service technician before attempting to use it again. Do not remove the cover, there are no user-serviceable parts inside. Use a dry soft cloth to clean the unit. If necessary, lightly dampen the cloth with soapy water. Do not use solutions containing benzol or other volatile agents.

2. AM STEPPING FREQUENCY

Worldwide models are equipped with a switch that controls the AM band tuning steps. Please set this switch to match the AM band tuning step frequency as below: 120V version : 10kHz 230V version : 9kHz

3. TAPE 1 & CD INPUT

TAPE 1 Connections for analogue recording and playback to an audio tape recorder of any type, such as a cassette, reel-reel, DAT, MD or DCC. Using twin RCA-toRCA leads, connect to the left and right Audio Output of the tape machine to the TAPE 1 IN connectors for playback. Connect the left and right Audio Input of the tape machine to the TAPE 1 OUT connectors for recording. CD INPUT Input for CD player (analogue audio signal) or other line-level signal source. Use a twin RCA-to-RCA lead to connect the CD players left and right Audio Outputs to this input.

1. FM & AM ANTENNA

AM ANTENNA An AM loop antenna is supplied with the T 751 and is required for AM reception. Open the clip terminal lever and insert the wire from the antenna. Closing the lever will lock the wire in place (Fig. 5). Test various positions for the antenna, but always ensure the loop is placed vertically for best reception. Placing the antenna close to large metal items such as metal shelves or radiators may interfere with reception. NOTE: When reception is not satisfactory using the supplied AM loop antenna alone, connection of an external antenna is recommended. Do not connect anything other than a loop antenna to the AM ANTENNA terminal. Do not remove the AM loop antenna. The antenna cable to the loop antenna must not exceed 3 meters. NAD 8

4. 5.1 CHANNEL INPUTS

Inputs for the multi-channel audio signals from an external decoder, such as an MPEG decoder or a DVD player with integrated decoder. Use two twin RCA-to-RCA lead to connect the decoders front left and right Audio Outputs to the Front left and right inputs, and the decoders Surround left and right outputs to the Surround left and right inputs. Use a third twin RCA-to-RCA lead to connect the decoders subwoofer output to the Subwoofer input and the decoders Center channel output to the Center channel input. Make sure you to follow color coding of the plugs to ensure that both Center and Subwoofer are connected correctly, for instance, use the red plugs at either end to connect the center channel and the white plugs for the subwoofer channel.

5. VIDEO 1 - VIDEO 4 (AUDIO & VIDEO)
Apart from the audio signal, these inputs will also accept a video signal which will be routed to the Monitor Out sockets (No. 8) for a television or video projector. The Video 1, 2 and 3 inputs also have the option of a Video Composite connection (using the yellow RCA socket) or an S-Video connection (using the Mini-Din connector). The S-Video standard allows for higher quality video signal transfer when compared to the Video Composite standard. If your video components have an S-Video connector use dedicated S-Video leads to connect them to the T 751 in the same way as described with the Video composite equivalents. A video signal fed to an S-Video input socket will be available on both the S-Video Monitor Out and Video composite Monitor Out. VIDEO 1 & VIDEO 2 (AUDIO) Inputs for the audio playback and video signal from a video device such as a stereo TV, DVD player, satellite cable TV receiver or a Laser Disc. Using twin RCA-to-RCA leads, connect to the left and right Audio Out of the video device to these inputs. Using a single RCA-to-RCA lead (Video Composite) or SVideo lead, also connect the video output of the video device; refer also to the description of S-Video and Video Composite in section No. 5 of this chapter. VIDEO 1 & VIDEO 2 can be used for video playback only. Use VIDEO 3 or VIDEO 4 if you want to connect a VCR for recording and playback through the T 751. The optical Digital Input 1 (No. 6) is linked to the Video 1 input. Select Video 1 to hear a source connected to Digital Input 1. The coaxial Digital Input 2 (No. 6) is linked to the Video 2 input. Select Video 2 to hear a source connected to Digital Input 2. VIDEO 3 & VIDEO 4 (AUDIO) Connections for the audio recording and playback to a VCR or other video recorder. Using twin RCA-toRCA leads, connect to the left and right Audio Out of the VCR to the VIDEO 3 or VIDEO 4 IN connectors for playback. Connect the left and right Audio In of the VCR to the VIDEO 3 or VIDEO 4 OUT connectors for recording. Using a single RCA-to-RCA (Video Composite) lead or S-Video lead, also connect the video output of the VCR to Video In (only Video Composite for Video 4) for Video playback. Connect the Video Input of the VCR to Video Out of the NAD T 751 receiver for recording of video signals. Refer also to the description of S-Video and Video Composite above in this section. Digital Audio Input 1 allows for connection of a digital source with an Optical output. Use a cable terminated with a TOS Link connector. This digital input is linked to the Video 1 input. Digital Audio Inputs 2 & 3 allow for connection of a digital source with a Coaxial digital output. Use a cable with the right impedance, specifically designed for the transfer of digital signals. These digital inputs are linked respectively to VIDEO INPUT 2 and VIDEO INPUT 3.

10. HEADPHONE SOCKET & VIDEO 5 INPUT
HEADPHONE SOCKET A 1/4 stereo jack socket is supplied for headphone listening and will work with conventional headphones of any impedance. The volume and tone controls are operative for headphone listening. Use a suitable adapter to connect headphones with other types of connectors such as 3.5mm stereo personal stereo jack plugs. Inserting a headphone will automatically turn off all speakers and signals from the Audio Pre-Out sockets. The sound from the EXT. 5.1 CH input is not available on the headphones socket. NOTES: In the OSD menu Speaker settings be sure to have selected and adjusted a preset with MAIN SPEAKERS set to LARGE. If set to SMALL, bass reponse will be limited. Refer also to Chapter On Screen Display (OSD) for more information. Listening at high levels can damage your hearing. VIDEO 5 INPUT For easy and temporary connection you can connect a camcorder (playback only) or video game console. If the game console or camcorder is mono, connect the audio lead to the R (Right) audio socket.
11. AUDIO & VIDEO INPUT SELECTORS & SURROUND MODE
These buttons select the active video and audio input to the T 751 and the audio signal sent to the loudspeakers, Tape, Video 3 & 4 and TV monitor outputs. Video inputs 1, 2 and 3 also select respectively the Digital Inputs 1, 2 and 3.

NAD 13

EXT. 5.1 Selects the multi-channel output signal from the DVD player or external decoder source (such as MPEG, for instance) connected to the 5.1 Ch. input as the active input. NOTE: No Ext. 5.1 audio signal is available from headphones socket, the Tape, Video 3 and Video 4 outputs when the Ext. 5.1. input has been selected. SURROUND MODE With the Surround Mode buttons the available surround sound modes can be selected. The selected Surround mode is permanently indicated in the display area and is also shown for 3 seconds in the large Star-Burst section of the display. The Surround Mode buttons scroll through the available surround sound modes: With any of the Digital Inputs 1, 2 & 3 (press Video 1, 2 or 3 respectively to select), the T 751 automatically recognizes if the selected source carries a Dolby Digital or DTS signal. When no Dolby Digital or DTS signal is available, the Surround Mode buttons scrolls through the other available surround sound modes: Stereo Pro Logic Ears Stereo, etc. Surround Mode if the source is either Dolby Digital or DTS and a Digital Audio input is used. An external source such as a decoder or DVD player with a decoder built-in (MPEG for instance) can be connected to the 5.1Ch input (No. 4 on the front panel). When the EXT 5.1 CH. input is selected, no other surround modes are available. To obtain the best performance possible it is important that the system and all speakers have been set up correctly. Refer to the chapters On Screen Display and Setting Up the Surround System. TAPE MONITOR Selects the output from a tape recorder when playing back tapes or monitoring recordings being made through the Tape sockets. Press the TAPE MONITOR button once to select it and again to return to the normal input selection. The Tape Monitor function does not override the current input selection. For example, if the CD is the active input when Tape Monitor is selected, the CD signal will continue to be selected and is sent to the Tape Out, Video 3 and Video 4 Out sockets, but it is the sound from recorder connected to Tape that will be heard on the loudspeakers. When Tape Monitor is selected, TAPE MONITOR will remain lit until Tape Monitor is disengaged again. CD Selects the CD as the active input. FM Selects FM radio. FM is also automatically selected when an FM Preset is selected. AM Selects AM radio. AM is also automatically selected when an AM Preset is selected. VIDEO OUTPUT The video signal available on the S-Video and Video Composite outputs is dependent on the selected video input (VIDEO-1, VIDEO-2, VIDEO-3, VIDEO-4, VIDEO-5). However, when one of the audio-only sources is selected (FM, AM, CD, Tape Monitor or Ext. 5.1) the last selected video signal from one of the video inputs will be present on these outputs. This way you can watch a DVD player or video whilst listening to the CD player. The display indicates which video signal is routed to the MONITOR OUT sockets (No. 8 on back panel).

7. CHANNEL SELECT

Although the T 751 is correctly set-up it may sometimes be desirable to make minor adjustments to suit particular software. Pressing the CHANNEL button allows for direct adjustment of Center, Rear and Subwoofer levels. Press the CHANNEL button to scroll to the next speaker. Both display panel and OSD show which speaker can be adjusted. Use the cursor 1 and 2 button to respectively decrease or increase the level for the current speaker. Pressing the CHANNEL button also gives access to CHANNEL BALANCE in the OSD directly: CENTER REAR R & L SUB OFF Refer also to the chapter Setting Up the Surround Sound System for more information.

4. MASTER VOLUME

Master Volume 3 or 4 respectively increases or decreases the volume setting for all speakers. The display panel will indicate the level set. The Volume control does not affect recordings made using the Tape and Video, or Tape, Video 3 and Video 4 outputs but will affect the signal going to the Pre-amp output (Audio Pre Out).

8. DYNAMIC RANGE

The DYN. R button, which can be used only in combination with a Dolby Digital source, incrementally reduces the audio tracks dynamic range in four steps (100%, 75%, 50% and 25%) to allow for comfortable listening under a variety of conditions. The normal or default position is 100%. To adjust the dynamic range, each consecutive press of the DYN. R button will reduce the value in 25% increments, as shown in the alpha-numeric display section. NOTE: Although we usually prefer to reproduce a sources full dynamic range (the difference between very loud and very soft sounds), it may occasionally be desirable to reduce the dynamic range. For example, when playing a movie late at night, loud explosions might wake sleeping family members. Simply turning the volume control down would probably make a whisper in the next scene inaudible. The DYN. R button solves this dilemma by progressively lowering the volume of loud peaks while increasing the level of softer sounds.
5. CURSOR 3 , 4, 1 AND 2 AND ENTER
The four Cursor buttons are used to navigate the cursor when using the menus with the On Screen Display and the ENTER is used to confirm the choice. Press 3 to move cursor up, 4 to move cursor down, 1 to move cursor left, 2 to move cursor right. Then press ENTER to access. With the four cursor buttons the relative volume level trims for center, left and right surround channels can be adjusted. Press the CHANNEL button (No. 7) to select the channel for which you wish to adjust the level. Refer also to chapter On Screen Display and Setting Up the Surround Sound System for more information.

1 INPUT SETTINGS

Highlight INPUT SETTINGS in the SETUP menu and press ENTER on the remote. You will see a screen similar to the following (Fig. 8):
INPUT SETTINGS AUDIO = TUNER VIDEO = VIDEO 1 MODE = DOLBY DIGITAL DYNAMIC RANGE = 100% DO NOT SAVE & EXIT SAVE & EXIT

ON SCREEN DISPLAY (OSD)

The NAD T 751 is equipped with an elaborate On Screen Display facility (OSD). As the OSD is an essential tool to set up the various parameters for Surround sound correctly it is recommended that you connect your monitor or television to the T 751. Depending on your source and/or the television system used you must first select the correct video system. If the OSD rolls over the screen you must select another system: PAL or NTSC. While pressing the MEMORY button (No. 5) on the front panel, press the VIDEO 1 input selector button (in section No. 11) repeatedly until the desired system is shown in the display area. The OSD can be engaged by pressing one of the four cursor buttons on the remote control. The SETUP Menu will appear as below (Fig. 7):
The available choices in each of the fields can be selected with the 1 or 2 button on the remote; confirm the choice with ENTER button. AUDIO = identifies the selected audio input (TUNER, CD, TAPE MONITOR and EXT. 5.1). VIDEO = identifies the selected video input (VIDEO 1, VIDEO 2, VIDEO 3, VIDEO 4 and VIDEO 5). MODE = indicates the operating mode of the selected input (DOLBY DIGITAL, DTS, PRO LOGIC, EARS, STEREO). DYNAMIC RANGE = indicates the dynamic range currently selected (100%, 75%, 50% and 25%) in Dolby Digital mode only, or N/A for the other modes. Highlight SAVE & EXIT and press ENTER to save the altered settings and return to the SETUP menu. Otherwise, select DO NOT SAVE & EXIT to leave without saving any changes.
SETUP 5 INPUT SETTINGS CHANNEL BALANCE CHANNEL DELAYS SPEAKERS SETTINGS EXIT

2 CHANNEL BALANCE

Highlight CHANNEL BALANCE in the SETUP menu and press ENTER on the remote. You will see a screen similar to the following (Fig. 9):
Use the cursor buttons on the remote control to navigate, select the desired menu and options, then

NAD 17

delay time can be adjusted as following options:
CHANNEL BALANCE LEFT CENTER RIGHT REAR L REAR R SUB : : : : : : 0dB 0dB 0dB 0dB 0dB 0dB
15, 16, 17,. 28, 29, 30ms (1ms per step)
For other modes, the channel delay time cannot be adjusted. Highlight SAVE & EXIT and press ENTER to save the settings and return to the SETUP menu. Otherwise, select DO NOT SAVE & EXIT to leave without saving any changes.
DO NOT SAVE & EXIT SAVE & EXIT
The T 751 allows the volume of each speaker to be individually trimmed so that none of the speakers dominates in playback and detracts from the surround illusion. Highlight the required speaker and adjust with 1 cursor to decrease and 2 cursor to increase the level, Each speaker can be adjusted within a -10 to +10dB range. Highlight SAVE & EXIT and press ENTER to save the settings and return to the SETUP menu. NOTES: The CHANNEL BALANCE menu in OSD can also be accessed directly with the CHANNEL and TEST buttons (respectively No. 7 and 6) on the remote for setting adjustment. (Refer also to chapter Remote Control).

4 SPEAKER SETTINGS

Highlight SPEAKER SETTINGS in the SETUP menu and press ENTER on the remote.You will see a screen similar to the following (Fig. 11):
SPEAKER SETTINGS PRESET MAIN CENTER SURROUND SUBWOOFER : : : : : 1 LARGE LARGE LARGE ON
The size and number of speakers can be described in the SPEAKER SETTINGS menu. Press 1 or 2 cursor button to select the preset (PRESET 1, 2 or 3) that best applies. The description LARGE and SMALL mean the following: The LARGE mode is used when the speaker is full range and capable of reproducing the entire audible frequency spectrum 20Hz to 20kHz. The SMALL mode is used when the speaker is not capable of reproducing the deepest bass portion of the audio frequency 20Hz to 100Hz. The choices ON and OFF mean the following: The ON mode is used when the speaker is active and receives the audio information intended.

3 CHANNEL DELAYS

Highlight CHANNEL DELAYS in the SETUP menu and press ENTER on the remote. You will see a screen similar to the following (Fig. 10):
CHANNEL DELAYS CENTER REAR OmS OmS
Use the 1 or 2 cursor button to change the center channel delay time. In Dolby Digital mode, T 751 allows the following setting options: CENTER REAR 0, 1, 2, 3, 4 & 5ms 0, 1, 2, 3,. 13, 14, 15ms (1ms per step) In Dolby Pro logic mode, only the rear channel NAD 18
The OFF mode is used when the speaker is inactive. Audio signals intended for speakers set to the OFF position are redirected to the main speakers. T 751 is pre-programmed with 3 factory presets that are suitable for most typical installations: Preset 1: Main - LARGE; Center - LARGE; Surround LARGE; Subwoofer - ON In this mode, all speaker channels are large, i.e. full range, and the home theater system has a sub-

woofer. This preset is particularly useful for large rooms. Preset 2: Main - LARGE; Center - SMALL; Surround SMALL; Subwoofer - OFF This preset is necessary for a home theater system that does not have a subwoofer. The bass frequencies from the center and surround channels are redirected to the main speakers. Preset 3: Main - SMALL; Center - SMALL; Surround SMALL; Subwoofer - ON This preset is ideal for those systems using 5 small speakers combined with a subwoofer. The bass frequencies from each of these 5 channels are redirected to the subwoofer. NOTES: Regardless of the available main speakers, select Preset 2 when subwoofer is not available to redirect bass frequencies to the main speakers. range and capable of reproducing the entire audible frequency spectrum 20Hz to 20kHz. The SMALL mode is used when the speaker is not capable of reproducing the deepest bass portion of the audio frequency 20Hz to 100Hz. The ON mode is used when the speaker is active and receives the audio information intended. The OFF mode is used when the speaker is inactive. Audio signals intended for speakers set to the OFF position are redirected to the main speakers. T 751 comes with 3 factory presets for typical Home Theater systems and ease installation. Refer also to chapter On Screen Display section 4 for more information. Using a separate center channel speaker will allow the dialogue to cut through even the biggest sound effects and musical scores. Having the sound spread across three front speakers also stabilizes the stereo image, making the usable listening area much bigger. For best results, you should consider using a center speaker. Ideally it should be the same type as the left and right speakers. Choose SURROUND and select one of the three modes available: Small, Large, Off. Installing surround speakers will greatly enhance the surround experience as these add considerably to the overall ambience. Dolby Pro Logic encoded material is deliberately limited in dynamic range and frequency bandwidth for the surround channel and thus only requires speakers of far lesser specification compared to the front channels. Dolby Digital however is a full range system, with two independent surround channels and with dynamics equal to that of the front channels. For this reason it is advisable to choose loudspeakers which are similar in power handling and performance capability to those of the front channels. For best results, the Surround loudspeakers should not beam the sound directly at the listener. One way of achieving this is to use dipole Surround speakers which aim the sound down the walls rather than directly into the room. Many film soundtracks rely heavily on very low frequency sound effects which are difficult for normal or smaller hi-fi speakers to reproduce. To faithfully reproduce these low frequencies you can use a specially designed low frequency loudspeaker with its own built-in amplifier (active subwoofer). Because it is difficult to hear which direction very low frequencies are coming from, you only normally need one subwoofer and this can be placed virtually anywhere in the room. The Subwoofer output of the T 751 is designed specifically to drive a subwoofer system. NAD 19

Channel Delays:

For the best surround sound performance it is important that sound from all speakers reach the listeners ears at the same time. Because the surround/rear speakers are usually closer to the listener than the front speakers, there is tendency for the ear to localise sounds to the rear, because the ear takes most notice of the sounds that arrive at the head first. Similarly, the center speaker is often closer to the listener than the front left and right speakers. To compensate for this, the T 751 can slightly delay the audio sent to the center and rear (closer) speakers. In this way, when playing Dolby Digital or Dolby Pro logic soundtracks, the sound from all speakers arrives uniformly at the listening position as intended by the films producer. Each millisecond corresponds approximately with 1 foot or 30.5 centimeters. NOTE: The channel delay option is not available in DTS surround mode. To set the center channel delay time, Call up the SETUP menu of the On Screen Display (Fig. 7). Select the CHANNEL DELAYS menu (Fig. 10). Choose CENTER and select the desired delay time (1, 2, 3, 4 or 5ms).

FRONT LEFT

CENTER

FRONT RIGHT

LISTENING POSITION REAR LEFT dFS dRS REAR RIGHT

Channel Balance:

The output levels of each of the speakers connected to the T 751 may need to be adjusted so that there is an even balance of sound from all the speakers in the system. If, for instance, the relative volume level to the Left and Right speakers and the center speaker is set too low, most of dialogue may be difficult to follow. If, on the other hand it is set too loud, the overall balance will sound unnatural. To adjust the channel balance the T 751 is equipped with a TEST button (No. 6) to help assess the loudness levels of each speaker. Before adjusting the channel balance level make sure the master volume is turned down to a normal listening level. Pressing the TEST button engages the Test signal
Measure the distance from the listening position to the center speaker (dC) and to one of the front speakers (dFL or dFR). Subtract the center channel distance from the front L or R channel distance. For example, if the front speakers are 12 feet (3.7 m) from the listening position and the center speaker is 10 feet (3.0 m), the difference is 2 feet (0.6 m). For this example the center channel delay is set to 2 milliseconds or ms. The T 751 can delay the center channel output up to 5 milliseconds and thus compensates for center NAD 20

WHISTLES OR BUZZES ON FM & AM WHISTLES OR BUZZES ON AM NO RDS NAME (PS)

NAD 22

NAD ELECTRONICS

(NEW ACOUSTIC DIMENSION)

LONDON
2000. T 751 I.M. PRINTED IN THE PEOPLES REPUBLIC OF CHINA. P/N: 4301-4108-0