Speaker Channels; Subwoofer; Height Speaker - Onkyo TX-NR545 Manual

Advanced Settings (Setup Menu)
2. Speaker
Allows you to change the speaker configuration such as presence or not of
subwoofer, crossover frequency, and so on. Settings are automatically
configured if you use the Automatic Speaker Setup.
This setting cannot be selected if headphones are connected or audio is
output from the speakers of the TV.
Configuration
You can change the number of speaker channels connected, the type of
front speaker connection, the height speaker type, and other speaker
settings.
Speaker Channels
Default Value: 7.1 ch
Select "2.1 ch", "3.1 ch", "4.1 ch", "5.1 ch", "6.1 ch", "7.1 ch", "2.1.2 ch",
"3.1.2 ch", "4.1.2 ch", or "5.1.2 ch" to suit the number of speaker
channels connected.

Subwoofer

Default Value: Yes
Set whether a subwoofer is connected or not.
"Yes": When subwoofer is connected
"No": When subwoofer is not connected
Height Speaker
Default Value: Front High
Set the speaker type if height speakers are connected to the BACK or
HEIGHT terminals.
Select "Front High", "Top Front", "Top Middle", "Top Rear", "Rear High",
"Dolby Speaker (Front)", or "Dolby Speaker (Surr)" according to the
connected speaker type and location.
If an item cannot be selected even though connection is correct,
check that the settings in "Speaker Channels" matches the number
of connected channels.
Bi­Amp