Denon AVR-1803 Operating Instructions Manual page 22

This screen is not displayed when not using a subwoofer.
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Set the crossover frequency and subwoofer mode according to the speaker system being used.
Use
the 0 (left) and 0 (rrght) buttons to select the Subwoofer mode.
(Initial)
(left) button (right) button
Press the ENTER or a (down) button to enter the setting and swatch to the Crossover Frequency setting.
2
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Use the 0 (left) and 0 (rrght) buttons to select the Crossover Frequency.
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-
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(left) button (right) button
Press the ENTER or m
(down) button to enter the setting and swatch to the SPEAKER DISTAN CE setting.
NOTES:
- Assignment of low frequency signal range -
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The signals produced from the subwoofer channel are LFE signals (during playback of Dolby Digrtal or DTS srgnals) and the low frequency
signal range of channels set to "SMALL" in the setup. The low frequency signal range of channels set to "LARGE" are produced from those
channels.
- Crossover Frequency -
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When "Subwoofer" IS set to "Yes" at the "Speaker Configuration Setting",
set the frequency (Hz) below whrch the bass sound of the
various speakers is to be output from the subwoofer (the crossover frequency).
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For speakers set to "Small",
sound with a frequency below the crossover frequency is cut, and the cut bass sound is output from the
subwoofer instead.
NOTE: For ordinary speaker systems, we recommend setting the crossover frequency to 80 Hz. When usrng small speakers, however,
settrng the crossover frequency to a high frequency may improve frequency response for frequencies near the crossover frequency.
- Subwoofer mode -
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The subwoofer mode setting is only valid when "LARGE" is set for the front speakers and "YES" is set for the subwoofer tn the "Speaker
Configuration" settings (see pages 20, 21).
If "SMALL" is set for the front speakers or "NO" is set for the subwoofer, the subwoofer mode settrng does not affect playback of low
frequency signal range.
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When the "+MAIN" playback mode is selected, the low frequency srgnal range of channels set to "LARGE" are produced simultaneously
from those channels and the subwoofer channel.
In this playback mode, the low frequency range expand more unrformly through the room, but depending on the srze and shape of the room,
interference may result in a decrease of the actual volume of the low frequency range.
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When the "NORM" playback mode is selected, the low frequency signal range of channels set to "LARGE" are only produced from those
channels, In this playback mode there tends to be little Interference of the low frequency range in the room.
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Try playing the music or movie source and select the playback mode provrding the stronger low frequency range sound.
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