Onkyo DR-S2.0 - Manual (Page 12)

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Positioning Speakers
Two speaker systems (SPEAKERS A and SPEAKERS B) can be connected to the DVD Receiver.
The SPEAKERS A system is to be placed in the main room, and the SPEAKERS B system is to be placed in a second room.
The configuration of the SPEAKERS A system
The SPEAKERS A system consists of the front left, center, and right speakers, surround left and right speakers, and subwoofer.
You can reproduce the sounds such as Dolby surround and DTS surround.
The configuration of the SPEAKERS B system
The SPEAKERS B system consists of the front left and right speakers.
You can reproduce only monaural and stereo sounds.
Standard speaker placement of the SPEAKERS A system
Speaker placement plays an important role in the reproduction of Surround sound. The placement of the speakers varies depending
on the size of the room and the wall coverings used in the room. The illustration below shows an example of a layout for standard
speaker placement. Refer to this example when you position the speakers in order to experience the best of Surround sound.
For ideal Surround effects, all speakers should be installed.
If a center speaker or subwoofer is not connected, the sound from the unused channel is properly distributed to the connected
speakers in order to reproduce the best Surround sound possible.
Front
The center speaker reproduces a richer sound image by enhancing the
perception of the sound's source and movement.
The left, right, and center speakers should face the seated listener and be
placed at ear level.
Surround
The surround speakers reproduce the feel of a moving sound while creating
the sensation of being in the middle of the action.
Place the left and right surround speakers 1 meter (3 feet) above the
listener's ear level and facing toward the sides of the room, making sure that
the listener is within the speakers' dispersion angle.
Subwoofer
Install a subwoofer with a built-in power amplifier for powerful bass sounds.
The placement of the subwoofer does not affect the final quality of the sound
image much, therefore, you can install it wherever it is convenient.
Refer to the speakers’ instruction manuals for details.
TV/Screen
Front
Center
Speaker
Front
right
Speak
er
Front
left
Speak
er
Sub-
woofer
Surround
left
Speaker
Surround
right
Speaker