Accurian 6.1ch Sirius-Ready A/V Surround Receiver User Manual page 13

Bass eff ects are an important part of home theater. For optimal enjoyment,
a subwoofer should be used as it is optimized for low frequency
reproduction. If you have full range front speakers, however, they may be
used in place of a subwoofer with proper setting of the switches in the
menu system.
Front Left and Right Speakers
We recommend to set the front L and R speakers with 45-60 degrees from
the listening position.
Center Speaker
Align the front line of the center speaker with the front L/R speakers. Or
place the center speaker a little backward from the line.
Surround Left and Right Speakers
When the receiver is used in surround operation, the preferred location for
surround speakers is on the side walls of the room, at or slightly behind the
listening position. The center of the speaker should face into the room.
Surround Back Speakers
Surround back speaker is required when a 6.1-channel system is installed.
The speaker should be placed on a rear wall, behind the listening position.
The center of the speaker should face into the room.
Subwoofer (Optional)
We recommend using a subwoofer to have maximum bass eff ect. The
subwoofer bears only low frequency range so you can place it anywhere in
the room.
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