Yamaha DSP-A3090 Operation Manual page 35

1C. MAIN SPEAKERS
Choices: SMALL/LARGE
Preset position: LARGE
SMALL:
Select this position if your main speakers do not have a
high ability for bass reproduction. However, if your system
does not include a subwoofer, do not select this position.
In this position, low bass signals (below 90 Hz) at the main
channels are output from the SUBWOOFER jacks (if the
SW or BOTH position is selected on "1D. LFE/BASS
OUT").
LARGE:
Select this position if your main speakers have a high
ability for bass reproduction.
In this position, full range signals present at the main
channels are output from the main speakers.
1D. LFE/BASS OUT
Choices: MAIN/SW/BOTH
Preset position: SW
MAIN: Select this position if your system does not include a
subwoofer.
In this position, full range signals present at the main
channels, signals from the LFE channel and other low
bass signals that are selected on 1A to 1C to be distributed
from other channels are output from the main speakers.
SW/BOTH:
Select either the SW or BOTH position if your system
includes a subwoofer.
In either position, signals at LFE channel and other low
bass signals that are selected on 1A to 1C to be distributed
from other channels are output from the SUBWOOFER
jacks.
When the LARGE position is selected on "1C. MAIN
SPEAKERS", in the SW position, no signal is distributed
from the main channels to the SUBWOOFER jacks,
however in the BOTH position, low bass signals from the
main channels are output to both of the main speakers and
the SUBWOOFER jacks.
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