NAD T 748 Owner'S Manual Download Page 15

Page: 15 / 40

DOLBY PRO LOGIC IIx

Dolby Pro Logic Iix processes both stereo and 5.1 signals into a 6.1 or 7.1
channel output. At Dolby Pro Logic Iix, you can either choose PLIIx Movie or
PLIIx Music mode to tailor your listening experience to the source material.
Dolby Pro Logic Iix surround processing 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. For two channel signals,
PLIIx Music mode also features three additional user controls – Dimension,
Center Width, and Panorama. See also section about “Adjusting Listening
Modes” below.

The following chart shows the channels available assuming they are
enabled in the “Speaker Configuration” menu:

Listening Mode

Two-Channel

Sources

Active Decoded Output Channels
6.1 Speaker System

7.1 Speaker System

PLIIx Music

PLIIx Movie

Front (left and right), Center,

Surround (left and right), Back

Surround, Subwoofer

Front (left and right),

Center, Surround

(left and right), Back

Surround (left and

right), Subwoofer

NEO: 6

Two-channel recordings, whether stereo or surround-encoded, are
reproduced with NEO:6 surround with output to front left/right, center and
discrete left/right surround channels plus subwoofer (assuming these are
present in the current “Speaker Configuration”). The T 748 provides two DTS
NEO:6 variations – NEO:6 Cinema and NEO:6 Music. See also section about
“Adjusting Listening Modes” below.

EARS

Two-channel recordings, whether stereo or surround-encoded, are
reproduced with proprietary NAD surround processing with signal output
to the front left/right, center and discrete left/right surround channels,
plus subwoofer (assuming these are present in the current “Speaker
Configuration”). 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.
Its virtues include realistic, stable “front-stage” sonic imaging and spacious
but unexaggerated ambient “virtual acoustics” that remain faithful to the
original recording.

ENHANCED STEREO

All recordings are reproduced in stereo via the maximum speaker
complement configured in the current “Speaker Configuration”. Enhanced
stereo can be useful for maximum volume from all channels or for multi-
speaker background music (cocktail party) listening. For this mode, Front,
Center, Surround and Back speakers can be turned ON/OFF as desired.

ANALOG BYPASS

All analog signals remain in the analog domain without analog-to-digital
conversions. At Analog Bypass, the DSP circuitry is bypassed but full tone
control functions remain. “Bass management” or Speaker settings are also
not in effect as these are DSP functions.

ADJUSTING LISTENING MODES

Several of the T 748’s listening modes have one or more selectable
variations and adjustable parameters that you can modify to suit
your system or personal preferences. At Listening Mode menu, use a
combination of [

D/F

] keys to navigate and achieve desired settings.

NOTE

Listening Mode parameter changes are maintained when you change
listening modes. You may also save a modified Listening Mode for easy
recall by saving it to a Preset (See “A/V Presets Setup” below under Setup
Menu discussions).

PRO LOGIC IIx

PLIIx MOVIE

is optimized for film soundtracks.

PLIIx MUSIC

for music recordings.

Center Width (0 to 7):

Modifies the “hard-centeredness” of the center

image, by gradually mixing mono center content to the Front left/right
speakers as well. A setting of “0” retains the center-channel-only default
while a setting of “7” yields a fully phantom center channel.

Dimension (-3 to 3):

Adjusts front-rear emphasis of the surround effect

independently from the relative channel levels.

Panorama (On/Off):

Adds a “wraparound” effect by extending some

stereo content into the surround channels.

NOTE

Pro Logic IIx mode will decode as Pro Logic II mode when the BACK
surround speakers are set to “Off” from “Speaker Configuration” menu.
See also section about “Speaker Configuration” under “Speaker Setup” of
the Setup Menu.

DTS NEO: 6

NEO:6 Cinema

is optimized for film soundtracks.

NEO:6 Music

for music recordings

Center Gain (0 to 0.5):

Adjust for better center image in relation to the

surround sound channels.

OPERATION

USING THE T 748 - MAIN MENU

ENGLISH

POR