ONKYO TX-NR901 Manual De Instrucciónes

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56
 
Basic Operation
 
—Continued
 
About the Listening Modes
 
With its built-in surround-sound decoders and DSP pro-
grams, the TX-NR901 can transform your home listen-
ing room into a movie theater or concert hall.
To get the most from surround sound, it’s important that 
you install and configure your speakers correctly. See 
“Connecting Your Speakers” on page 23 and “Speaker 
Settings” on page 40 for information.
 
Direct
 
The selected input source is output by the front left and 
right speakers only, with minimal processing for a pure 
sound.
 
Pure Audio
 
As an extension of Direct mode, this mode turns off the 
display, turns off the power to the video circuitry, and 
minimizes any other possible noise sources, providing a 
high fidelity sound that’s true to the original. (Since the 
power to the video circuitry is turned off, no video sig-
nals will be output.)
 
Stereo
 
The selected input source is processed as a stereo signal 
and output by the front left and right speakers and the 
subwoofer. 
 
Mono
 
Use this mode when watching an old movie with a mono 
soundtrack or to select multilingual soundtracks 
recorded in the left and right channel of some movies. It 
can also be used when playing a DVD or other source 
with multiplexed audio, such as a karaoke DVD.
 
T-D (Theater-Dimensional)
 or
 
With this mode you can enjoy a virtual 5.1 surround 
sound even with only two or three speakers. This works 
by controlling how sounds reach the listener’s left and 
right ears. Good results may not be possible if there’s too 
much reverb, so we recommend that you use this mode 
in an environment with little or no natural reverb.
 
Dolby Pro Logic II Movie
 
Use this mode with DVDs and vid-
eos that bear the Dolby Surround 
logo or TV programs that feature Dolby Surround. You 
can also use this mode with stereo movies or TV pro-
grams and the TX-NR901 will create a 5.1 surround mix 
from the 2-channel stereo.
 
Dolby Pro Logic II Music
 
Use this mode to add 5.1 surround to stereo sources such 
as music CDs and DVDs.
 
Dolby Digital
 
With this format you can experience the 
same superb sound that you get at a movie 
theater or concert hall. Use this mode with DVDs that 
bear the Dolby Digital logo.
 
Dolby Digital EX
 
With an added surround-back channel, 
this 6.1 channel format offers a heightened 
sense of space, for added realism with moving sounds, 
such as those that rotate 360 degrees or pass overhead. 
Dolby Digital EX material can also be played on conven-
tional 5.1 channel systems, in which case the surround-
back channel audio is divided between the surround left 
and right channels. Use this mode with DVDs that have 
a 5.1-channel soundtrack and bear the Dolby Digital 
logo.
 
DTS
 
This digital surround format offers a sur-
round sound experience with exceptional 
fidelity. It uses compressed digital audio 
data, with six completely separate channels 
(5.1), and the ability to handle large amounts of audio 
data while remaining faithful to the original. DTS pro-
vides very high-quality sound. You’ll need a DTS com-
patible DVD player in order to enjoy DTS material. Use 
this mode with DVDs, LDs, or CDs that bear the DTS 
logo.
 
DTS-ES Discrete
 
This is DTS with an added surround back 
channel for 6.1 surround sound. Use it with 
program material recorded in DTS 6.1 format. With the 
additional surround back channel, this format offers 6.1 
fully independent digital channels, providing a realistic 
sense of movement and space. Use it with program mate-
rial recorded in DTS 6.1, such as CDs, DVDs, or LDs 
that bear the DTS-ES logo.
 
DTS-ES Matrix
 
This is DTS with an added surround back 
channel for 6.1 surround sound. Use it to 
provide 6.1 channel surround playback 
with program material recorded in DTS 5.1 
format. Since DTS 5.1 program material 
contains surround back channel informa-
tion, all channels can be reconstructed for 6.1 surround 
playback. Use this mode with CDs, DVDs, or LDs that 
bear the DTS-ES or DTS logo.
 
Listening Modes
The TX-NR901’s surround indicators show which 
speakers are active in each listening mode.
Front left
Center
Front right
Subwoofer
Surround 
right
Surround 
back left 
right
Surround 
left
TX-NR901_En.book Page 56 Wednesday, October 1, 2003 9:44 AM