ONKYO TX-DS989 Manuel D'Instructions

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Before connecting the speakers, place them correctly by
consulting the instruction manuals that came with them.

For surround playback, the configuration and placement of your
speakers are very important.

For THX surround EX playback, we recommend that you use a
THX speaker system that is certified by Lucasfilm Ltd.

Produces a rich sound image by serving as a sound source for
the front right and left speakers and enhancing the sonic
movement.

Adds three-dimensional sonic movement and produces
environmental sound associated with the background and
effect sound for each scene.

Required for enjoying THX Surround EX audio.

Produces powerful and heavy bass.

The sound recorded for the center speaker and the subwoofer will
be properly distributed to the front right and left speakers and the
surround right and left speakers for optimized surround playback.

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.

• 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.

• Place these speakers so that their height is 1 meter higher than

that of the listener’s ears.

• These speakers are required for enjoying THX Surround EX

audio.

• Place these speakers behind the listener so that the angle

between each speaker and the listener is approximately 30
degrees.

• Place these speakers so that their height is 1 meter higher than

that of the listener’s ears.

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A subwoofer is recommended for the highest bass effect.

Most dipoles have an arrow on them to indicate their orientation
towards the screen. So for the side dipoles, the arrows point
forward. For the back dipoles, the arrows should point towards
each other to achieve the correct acoustical phasing in the room.