OPERATION 13
OPERATION
Move the
Master Power Switch
‚
(marked
Power
) to the “•” (On) position.
The SUB-TS18 subwoofer will automatically
turn itself on or go into Standby mode,
depending on whether or not a signal is
being sent to it by your receiver or surround
processor, and provided that the
Audio-
Sense On/Off Switch
¢
is moved down
so that it is in the
AUTO
position.
When your receiver or amplifier is off, or is
not sending program material to the sub-
woofer, the subwoofer will be in Standby
mode and the LED indicator on the top
of the subwoofer will turn amber. When the
subwoofer senses an audio signal, it will auto-
matically turn itself on and the LED indicator
will turn blue. If the subwoofer does not
sense a signal after approximately 20 minutes,
it will automatically go into Standby mode.
When the
Audio-Sense On/Off Switch
¢
is switched to the
ON
position, the sub-
woofer will remain on, whether or not pro-
gram material is playing, and the LED indica-
tor will remain lit blue.
If your receiver, processor or amplifier is
equipped with a compatible trigger output,
you may connect it to the SUB-TS18’s
External Trigger Input
£
. When you turn
on your component, if you have set it up cor-
rectly, it will send an electrical trigger signal
to the SUB-TS18, which will cause the
subwoofer to turn itself on, even when the
Audio-Sense On/Off Switch
¢
has been
placed in the
AUTO
position and no audio
signal is detected.
The trigger signal must be between 3 and 30
volts, although it may be an AC or DC signal,
and an AC signal may be 50Hz or 60Hz.
If you’ll be away from home for an extended
period of time, or if the subwoofer will not be
used, switch the
Master Power Switch
‚
to the
OFF
position.
Volume
Volume can be adjusted using the
Sub-
woofer-Level Control
¡
, as shown.
Turn the control knob clockwise to
increase the volume of the subwoofer,
and counterclockwise to decrease the
subwoofer’s volume.
Additional Bass Adjustments
In addition to the volume adjustments described
previously, the SUB-TS18 subwoofer includes
a
Phase Switch
∞
and a
Filter Switch
™
that can be used to adjust the bass
response to suit your listening environment
or taste.
In most situations, the
Phase Switch
∞
should be left in the
NORMAL
position.
If you suspect that the subwoofer is playing
out of phase with the other speakers, which
would tend to diminish bass response, try
placing this switch in the
REVERSE
position. There is no harm in experimenting,
and you may return the switch to the
NORMAL
position at any time. If you
rearrange your room and reposition the
speakers, it would be a good idea to check
whether they are in phase by flipping this
switch.
The
High-Cut (Low-Pass) Filter Switch
™
limits the frequencies of the audio signal
inputted to the subwoofer to the low fre-
quencies that the subwoofer reproduces
best. This allows the subwoofer to perform
more efficiently, and with superior bass
reproduction, minimizing distortion that might
occur if the subwoofer attempted to repro-
duce higher frequencies. This switch should
be left in the
ON
position,
except
:
1. When the
SUB Input
§
is being used,
in which case it has no effect, or
2. When the
Speaker-Level Inputs
ª
or the
Line-Level Full-Range Inputs
¶
are being used with a crossover or
filter aboard the receiver or processor.
In these two circumstances, place the switch
in the
OFF
position.
MIN MAX
Subwoofer
Level
MIN MAX
Subwoofer
Level
HKTS 18 OM 10/6/06 1:34 PM Page 13
