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that looks like an 8Ω resistor at some frequencies will show 4Ω
at others, and often, 3Ω or even 2Ω at still others. Furthermore,
actual loudspeaker loads are far more complex than simple test
resistors. What does all this mean? Simply, that power on paper is
but a poor predictor of how loud, how dynamic, how m\
usical.
Nevertheless, in a competitive market comparisons will be made.
But when you make them, read the fine print-all of it. At NAD
we test under the most demanding, worst-case conditions,
reporting the minimum power output we achieve at any frequency
within human audibility (full audible bandwidth of 20Hz-20kHz),
and with all channels driven and fully stressed simultaneously at
clearly specified, vanishingly low distortion. Many competitors do
not: they often quote single-frequency power (1 kHz) reflecting at
most one associated channel (maximum 2 channels) dominating
the receivers power supply-often under a variety of deceptive
power headings. And if distortion is stated at all its usually at quite
high levels: 0.5 percent, 1 percent-in one case, 10 percent!-its
easy to print big numbers that simply do not tell the true story. The
bottom line: dont be fooled by specs; let your ears be the judge.
PowerDrive-„¢
This keystone of the NAD receivers amp-section design underpins
the unique dynamic potential of every model. PowerDrives
foundation is a dual-rail power supply that delivers enhanced
internal voltage levels whenever unusual demands approach:
dynamic peaks, big musical transients, deep-bass excursions
that drive a loudspeaker into its most power-hungry impedance
range. Its a little like the kickdown of a sophisticated automatic
transmission-one that happens in 1/50,000th of a second.
PowerDrive is one big reason why NAD AV receivers do not exhibit
the dynamic compression, flattened imaging, and even tinges of
harshness audiophiles so often decry as receiver sound. And
PowerDrive not only makes NAD receivers sound better, it makes
them cooler running, more efficient, and more reliable as well.
Performance
Todays advanced Surround Sound receivers require quality in the
digital decoding stages, the video processing section, and in the
power amplifier design for the best overall performance. The T765
is an excellent example of the NAD Design Teams expertise in all
three areas. Not only that, but we have made many ergonomic
refinements to simplify operation and make it more enjoyable to
get all the performance this magnificent receiver is capable of
delivering.
Using the latest 32 bit Dual Core Floating Point DSP technology,
NAD was able to include the expected surround formats from
Dolby and DTS, as well as including NADs own highly regarded
music surround mode; EARS. Unlike, the typical artificially enhanced
DSP modes like Club, Stadium, and Church, EARS uses DSP
technology to extract the natural ambience of the recording. This
is redirected to the surround channels to create natural surround
sound from any 2 channel source. This induces a warm natural
reverberant effect without the artificial BOING of artificial reverb.
The surround mode of the source material is automatically
detected via the digital inputs of the T765, and the highest or most advanced form of decoding is switched in. Conversion of
the encoded digital bitstream is performed with high resolution
and extremely linear Burr-Brown 24 bit/192kHz D/A Converters
carefully selected for their performance capabilities. The T765
uses five two-channel DACs rather than the usual single 8 channel
DAC favoured by many of todays surround sound receivers. We
have found that the sonic performance of the two-channel DACs
used in a dual differential mode, is well worth the extra cost of this
configuration.
NADs reputation for producing power amplifiers that are both
potent and musical is upheld in fine manner with the T765.
Boasting a minimum of 60 watts continuous power per channel,
the T765 can easily fill a room with lifelike sound levels.
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 favourite films
and music recordings.
Flexibility
The T765 has all the flexibility required to serve as the command
center for even the most sophisticated Home Theatre and multi-
room systems. A full suite of video switching caters to all the
popular video formats (HDMI, Component Video, S-Video, and
Composite Video). Digital inputs (including a handy front panel
input) 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 T765, NAD has made it easy to add more speakers for
listening to music in an additional room or zone. 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
Zone 2 outputs to add additional amplifiers and speakers with the
added benefit of independent source selection and volume control.
For added flexibility the back surround amplifier channels can be
assigned to Zone 2 if the main zone is 5.1. A separate second
zone remote is included.
There are also 12 volt triggers to automatically switch remote
zone amplifiers on and off, and even an RS-232 data port for
connection to highly advanced automated control systems.
Thoughtful features like discrete On and Off codes, direct access
to inputs and FM station presets facilitate the integration of the
T765 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
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sure the T765 does not become obsolete anytime soon. Preamp
outputs allow the addition of more powerful amplifier channels.
The T765 includes a data jack specifically designed to control
an iPod with the addition of NADs optional iPod Dock accessory.
This allows the iPods meta-data to be displayed on the OSD and
be controlled using the NAD remote control. Audio and Video
connections and iPod recharging are also featured in the iPod
Dock.
All input circuitry is contained on 5 easily removable plug in cards.
Although this construction technique is more costly to implement,
it offers several important advantages. 1) Speed to market for new
technology. 2) Upgrade for older units 3) Simple field service.
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
operation of the T765 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 T765 is informed of your
specific system set-up, all settings are stored in a non-volatile
memory making this a one time task. The informative front panel
display indicates complete information about the source being
listened to or watched including selected surround mode and
volume setting. The front panel display can be easily customized
by renaming inputs and even determining what information you
prefer to have displayed and when to display it.
Automatic Audio Setup is available using the supplied calibrated
microphone. Simply place the microphone in the listening position
and select Audyssey auto-calibration and the system automatically
detects which speaker is connected, chooses the ideal crossover
point to the subwoofer, checks speaker phasing, and adjusts the levels and delays. These adjustments are made to a level of
accuracy that it would be difficult to duplicate by ear alone.
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. We also include a Digital Broadcast
Ready socket on the rear panel for adding outboard DAB module.
All the control software is included, just plug in an option NAD
DB-1 module and start enjoying the clear sound and expansive
content selection available with Digital Radio Broadcast.
Five independent Audio Video Custom Presets can store unique
listening modes, DSP options, tone, speakers and display 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 T765 also remembers your last used settings
when switched in and out of Standby mode.
The included HTR 3 remote handset is itself an engineering tour-de-
force. Able to control up to 8 different components, the device key
illuminates to clearly shows what device is being controlled. It has
illuminated buttons for easy operation in low light environments,
and the length of time the illumination is on can easily be adjusted.
Remote commands for products not already included in the HTR
3s memory can be easily taught to the HTR 3. And the HTR
3s Macro function allows up to 64 individual commands to be
triggered by the pressing just two keys. With this feature, all of
the commands required for watching a DVD, for example, are
executed automatically by the HTR 3s Macro function.
Summary
The T765 offers remarkable performance and flexibility in a
compact and simple to operate package. This multi-channel
powerhouse will bring your favourite music and movies to life in
your home entertainment room with an absolute minimum of fuss
and a maximum of pure enjoyment.
T 765 Surround Sound A/V Receiver
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