Denon AVR-X4100W Owner's Manual page 217

Contents Connections
Speaker Config.
Select whether or not speakers are present, playback capacity for low
bass frequencies and speaker size.
When speakers for which you assigned Height1 in "Amp Assign" are set to "None",
"None" is automatically set for Height2.
o Front
Set the front speaker size.
Large
(Default):
Small:
0 When "Subwoofer" is set to "No", "Front" is automatically set to "Large".
0 When "Front" is set to "Small", you cannot set speakers other than "Front" to
"Large".
Front panel Display
Playback
Use a large speaker that can adequately
play back very low bass frequencies.
Use a small speaker that has inadequate
playback capacity for very low bass
frequencies.
Rear panel
Settings
o Center
Set the presence and size of the center speaker.
Large:
Small
(Default):
None:
o Subwoofer
Set the presence of a subwoofer.
2 spkrs:
1 spkr
(Default):
None:
When "Subwoofer" is set to "None" and you set "Front" to "Small", "Subwoofer" is
automatically set to "1 spkr".
217 Remote
Tips Appendix
Use a large speaker that can adequately
play back very low bass frequencies.
Use a small speaker that has inadequate
playback capacity for very low bass
frequencies.
Select when a center speaker is not
connected.
Use two subwoofers.
Use only one subwoofer.
Select when a subwoofer is not
connected.
Index