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Connecting speakers
Before connecting the speaker:s, place them correctly by consulting
the instruction manuals thai came with them.
For surround playback, the configuration and placement of your
speake_:s are very important.
For THX surround EX playback, we recommend that you use a
THX speaker syslem that is certified by Lucasfilm Ltd.
I Ideal speaker configuration
• Front right and left speakers
• Centerspeaker
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 speaker
Required for enjoying THX Surround EX, DTS-ES Matrix 6.1,
or DTS-ES Discrete 6.1 audio. For audio using surround back
right and surround back left speakers, a separately-sold 2-
channel power amplifier is required.
Lucasfihn/THX recommends the use of two Surround Back
speakei:s to enjoy the full potential of THX Surround EX. An
external stereo power amplifier will need 1o be used to power
the two speakers from the Pre-Amp out lerminals.
However, if you are unable to position two speakers in your
listening environment, a single surround speaker can be used
and the TX-DS797 has an internal amplifier to power this
speaker for your convenience.
• Subwoofer
Produces powerful and heavy bass.
Minimum speaker configuration for surround
sound playback
Surround back speaker/Surround back left and right speakers
• Place these speakers behind the listener so that the angle
between each speaker and the listener is approximately 15
degrees.
• Place these speakers so that their height is 3 feet (1 meier)
higher than that of the listener's ears.
Note:
For audio using surround back right and surround back left
speaker, a separately-sold 2-channel power amplifieris required.
(Only one surround back
speaker)
[]
(Two surround back
speakers)
Front right and left speakers
Surround right and left speakers
The sound recorded for the center speaker and the subwoofer will be
properly dislributed to the front right and left speakers for optimized
surround playback.
I 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 Io create the optimum conditions for the best sound qualily,
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 at the same height from the floor.
• Place each speaker so that sound is aimed at the location of the
listener's ears when at the listening position.
Surround left and right speakers
• Place these speakers so that their height is 3 feet (1 meter)
higher than that of the listener's ears.
lit
IHI
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I H i
i H 1
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115°uu15I
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1 TV or screen 8 Surround back left
2 Front left speaker speaker or Surround back
3 Subwoofer speaker (only one
4 Center speaker surrround back speaker)
5 Front right speaker 9 Surround back right
6 Surround left speaker speaker
7 Surround right speaker 10 Listening position
Most dipoles have an arrow on them to indicale their orientation
towards the screen. So for the side dipoles, 1he arrows point forward.
For the back dipoles, the an'ows should point towards each other to
achieve the correct acoustical phasing in the room.
19
(Two surround back speakers)
Layout with dipolar Layout with monopolar
speakers speakers
[ 1 ] [ 1 I
10
6
E 1 3
Subwoofer
A subwoofer is recommended for the highest bass effect.
(Only one surround back speaker)
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