Using the t 752 – NAD T752 User Manual

Page 21

2 1

ENGLISH

USING THE T 752

• Dolby Digital
• Dolby Digital EX
• DTS
• DTS ES 6.1

Digital recordings in Dolby Digital or DTS formats are reproduced via the channels employed in the original
recording (up to the maximum channels present in the current setup).

NOTE: The DVD player must be sending a Dolby Digital or DTS bit-stream from its digital output. Your DVD
player probably includes its own setup menu that (among other things) lets you select the default bit-
stream format, and usually includes an “Auto” setting that directs the player to choose the Dolby Digital/
DTS signal whenever these are available. In a few cases, you may have to set the player’s bit-stream
manually to “DD/DTS” or an equivalent. In the case of DVDs that carry both Dolby Digital and DTS, you
will select one or the other from the disc’s (not the player’s) main menu.

Note also that while most Dolby Digital recordings are 5.1-channel surround productions, older examples
may be multichannel, 2-channel, or even monaural; the T 752 will automatically reproduce the Dolby
Digital signal with the maximum number of channels available.

Both Dolby Digital/EX and DTS/ES 6.1-channel recordings are reproduced using the surround back channel,
if present in the current Speaker Settings setup; additionally, the T 752 creates surround-back signal from
non-EX/ES, 5.1-channel Dolby Digital and DTS recordings.

Dolby Digital EX creates six full-bandwidth output channels from any 5.1-channel Dolby Digital recordings.
The very best results occur with movies or other programs bearing the Dolby Digital Surround EX mark,
which are produced to take full advantage of this playback mode.

The table below indicates which listening modes are available with the two types of audio signal sources:
digital- or analog-input 2-channel (whether the actual signal is monaural, stereo or surround-encoded), and
digital-multichannel (Dolby Digital or DTS). Where a listening mode is not available to a given signal source,
it will not appear in the selection rotation.

2-ch analog or PCM

Multi-ch. (DD/DTS)

Stereo

Downmix

EARS

Dolby Digital/EX or DTS/ES

Dolby Pro Logic II

DTS Neo:6

Matrix 7.1

Enhanced Stereo I

Enhanced Stereo I*

Enhanced Stereo II

Enhanced Stereo II*
*downmixed signals

DISPLA

DISPLAYING THE SIGNAL MODE

YING THE SIGNAL MODE

Keying the front panel’s DISPLAY or HTR 2 remote's [DISP] key will display on the VFL the channel-mode of
the currently selected input signal, in the format “front/surround.subwoofer” (see “4 DISPLAY” in the
“Front Panel” section, above).

The following table shows examples of displays seen with various signal types:

Source

Readout/OSD

Analog

Digital PCM

Multichannel (Dolby Digital)

Dolby D 3/2/.1 (full surround)
Dolby D 3/1/.1
Dolby D 2/0
etc.

Multichannel (DTS)

dts 3/2/.1 (full surround)
dts 3/1/.1
dts 2/0
etc.

SELECTING LISTENING MODES

Keying the HTR 2 remote's [SURR MODE] button steps through each of the T 752’s Listening Modes available
to the current input signal. It also momentarily displays the Listening Mode in the OSD.

NOTE: Changing the type of input signal may automatically change the Listening Mode: If the new signal
is a Dolby Digital or DTS recording, it will automatically invoke its native mode. The reverse is also true
if Dolby Digital or DTS was previously selected.