NAD T 751751 owner manual 12V Trigger OUT

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generator to allow for adjustment of all speaker lev- els, so that each channel can be adjusted for equal loudness at your listening position. The test signal scrolls automatically with 5 second intervals from Left, Center, Right, Rear Right, Rear Left, to sub- woofer in continuous cycles. If an adjustment in set- ting is made for one of the speakers, scrolling will stop until 5 seconds after the adjustment was made. Both display panel and OSD show which speaker is being fed with the test signal. Use the cursor 1 and 2 button to respectively increase or decrease the level for the current speaker.

NOTE:

There is no output in the Subwoofer during noise sequencer operation; therefore it is difficult to adjust the level in test mode. The Subwoofer level can be adjusted in the OSD setup menu with musical input.

The Channel Balance for each speaker can be adjusted in 1dB increments. Continue to calibrate the level for each speaker until equal loudness is achieved at your listening position. A more accurate adjustment can be made using a sound level meter, if available. Set the meter to “Slow” and “C-weighted” modes and re-check the settings with the meter placed in several different positions in the general lis- tening area.

Press the TEST button again to leave or cancel the Test mode, any changes will be memorized automati- cally.

The loudspeaker levels can also be individually adjusted with the OSD setup menu:

•Call up the SETUP menu of the On Screen Display (Fig. 7).

Select the channel for which you wish to adjust and set the level so that it matches the other speakers. For best results it is best to start with the Left channel set at 0dB and to match the other speakers to it. Normally, if the Right speaker is located at the same distance from the listening position to the Left speak- er it should be set at the same level as the Left speaker.

NOTE:

If no level adjustments were made, press TEST again to return to the selected source. Any changes in the Channel Balance Setting, under the test mode, will be memorized automatically.

LFE (Low Frequency Effects, with a Dolby Digital source, the subwoofer channel) can be set from +10dB to -10dB.

The Delay time for the Surround speakers also needs to be correctly set for your normal listening position. Refer to the section “Channel Delay” in this chapter for more information.

12V TRIGGER OUT

This output allows to remotely switch on or off ancillary equipment such as a tuner, power amplifier, etc. which are also equipped with a 12V trigger input. This can also be an AC outlet power strip equipped with a 12V trigger input. The 12V trigger output is activated whenever the unit is in switched to normal operational mode from Stand-by or Off.

For switching Stand-by/Power On of an external component through the T 751, connect the12V-trigger output of the T 751 to the remote component’s DC input jack. The plug required is a standard 3.5mm Mini-Jack plug (“mono”): The tip is the live or + con- nection, the shaft of the input jack is the 12V-trigger - or ground connection.

NOTE:

Check the specifications of the Trigger input termi- nal on the other components to ensure these are compatible with the T 751’s 12V-trigger output. NAD components equipped with 12V input triggers are fully compatible with the T 751’s 12V output trigger.

The T 751’s 12V-trigger output voltage is 12V DC. The total maximum current must not exceed 200mA. Typically, NAD 12V input triggers draw less than 10mA of current.

Before making any connections to any 12V trigger input or output, make sure all components are dis- connected from the AC mains.

Failure to observe the above may result in damage to the T 751 or any ancillary components attached to it. If in doubt over the connections, installation and operation of the 12V trigger output consult your NAD dealer.

NAD

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