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Idiomas disponibles
Idiomas disponibles
2070Si Subwoofer - Operation
Setting Up and Use
Auto Power On: This feature enables you to switch the main system on
and off without having to remember to switch the subwoofer on and off as
well.
If there is no signal input, after a few minutes the subwoofer will
automatically power down into Standby mode. This is indicated by the
POWER light on the rear panel changing to red. As soon as the
subwoofer senses an input it will automatically switch into operational
mode and the power light will again glow green. Some types of music
and some TV channels have very little low frequency information in the
audio signal in which case the subwoofer may not automatically switch
out of standby even though sound is coming from the other speakers in
the system. If this happens then the threshold can be adjusted to make
the unit more sensitive by setting the auto-on sensitivity to HIGH. Under
some circumstances however this setting may make the sub-woofer stay
on at all times, this is due to the small amount of noise which will normally
be present from the main system amplifier. This noise should disappear
when the amplifier is set to standby, thus allowing the subwoofer to turn
off again. If the sub-woofer remains on even when the main amplifier is
turned off then we recommend you leave the sensitivity switch at MED,
the loss of bass will be almost undetectable due to the characteristic
response of human ears.
If the level of noise produced by the amplifier is higher than normal, or the
connection cables are picking up hum from nearby power cables, the
sub-woofer may remain on even when no sound is playing. If hum is
noticeable from the subwoofer then you should try moving the cables to
reduce the hum pick-up or try a different cable/s. In circumstances where
the problem cannot be easily remedied we recommend trying the LOW
setting of the sensitivity switch to see if that allows the sub-woofer to enter
standby.
Although the subwoofer can be safely left in standby mode indefinitely, if
you are going to be absent from home for a long period, we advise that
the unit is switched off at the ON/OFF switch.
The 2070Si Subwoofer also has a fail safe heat protection system. If the
amplifier overheats it will shut down momentarily and then resume
operation. If this occurs check that the ventilation holes on the control
panel are not covered and that the sub-woofer is not placed too close to a
source of heat such as a radiator.
Using Multiple Subwoofers: Your 2070Si sub-woofer includes a Line
output connection called "Chain out". In systems where more than one
sub-woofer is used this allows the signal to be daisy chained to another
one or more sub-woofers. This is just a convenience feature which is an
alternative to using a "Y-Adaptor" at the amplifier output. Please note that
the signal is a straight pass-through and so all sub-woofers must be set-
up independently using their controls as normal.
The following section is divided between home cinema installation and
standard stereo installation. Please refer to the relevant section for your
system.
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