Onkyo TX-NR900 Stereo Receiver User Manual


 
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Surround back speakers
Place these speakers so that their
height is 3 feet (1 meter) higher than
that of the listeners ears.
When using surround back left and
right speakers, place them behind the
listener so that the angles between the
lines from each speaker to the listener
and a line straight back from the
listener are less than 30 degrees.
Subwoofer
When bass sound is reproduced, its volume and quality greatly
depend on subwoofer placement. Those characteristics also depends
on the shape of your listening room as well as your listening point.
Generally speaking, good bass sound is obtained when the
subwoofer is placed in the corner of the room or at one-third the
length of the room.
For optimizing the subwoofer placement, we recommend you to:
Play a movie or music source containing good quality base sound,
Take some experimenting while changing subwoofers position
in the room, and
Try different positioning until you get the most out of the base
sound while fixing the listening point.
Most dipoles have an arrow on them to indicate their orientation in
which that should be placed. For the correct acoustical phasing in the
room, dipolar surround speakers should be placed so that their
arrows point forward toward the screen and dipolar surround back
speakers should be placed so that their arrows point to each other.
Connecting speakers
1 TV or screen
2 Subwoofer
3 Front left speaker
4 Center speaker
5 Front right speaker
6 Surround left speaker
7 Surround right speaker
8 Surround back left speaker
9 Surround back right speaker
10 Listening position
Before connecting the speakers, it is very important to place them
properly for the optimum sound space for your listening pleasure.
Be sure to refer to the instruction manuals that came with the
speakers during placement and connection. Furthermore, be aware
that for surround playback, the configuration and placement of your
speakers are both very important.
For THX surround EX playback, we recommend that you use a
THX speaker system that is certified by Lucasfilm Ltd.
Ideal speaker configuration
Front right and left speakers
Center speaker
Produces a rich sound image by serving as a sound source for
the front right and left speakers and enhancing the sonic
movement.
Surround right and left speakers
Adds three-dimensional sonic movement and produces
environmental sound associated with the background and effect
sound for each scene.
Surround back right and left speakers
Required for enjoying THX Surround EX, DTS-ES Matrix 6.1,
or DTS-ES Discrete 6.1 audio.
Subwoofer
Produces powerful and heavy bass.
Minimum speaker configuration for surround
sound playback
Front right and left speakers
Surround right and left speakers
The sound recorded for the center speaker and the subwoofer will be
properly distributed to the front right and left speakers for optimized
surround playback.
Speaker placement
Ideal speaker placement varies depending on the size of your room
and the wall coverings. Here, only typical example of speaker
placement and recommendations are shown.
In order to create the optimum conditions for the best sound quality,
be sure to place all the speakers so that the greatest difference
between the distances of each speaker to the listening position is
less than 20 feet (6 meters).
Important points regarding speaker placement
Front left and right speakers and center speaker
Place these three speakers all at the same height.
Place each speaker so that it is aimed at the location of the
listeners ears when at the listening position.
Place the right and left loudspeakers at an equal distance either
side of the listening point.
Surround left and right speakers
Place these speakers so that their height is 3 feet (1 meter)
higher than that of the listeners ears.
10
8 9
3
2
4
5
6
7
10
1
3
2
4
5
10
1
67
8 9
89
Layout with dipolar
speakers
Layout with monopolar
speakers
1/3 room length
Corner