5
High Level from Amplifier:
If your controller does not have low
level outputs (SUBWOOFER, LFE,
or full-range preamp outputs), use
these color coded connectors. Run
speaker wire from your amplifier or
receiver’s speaker terminals to tap
the signal.
ULS-15 Amplifier Panel
Wireless Signal Indicator:
LED is on (green) when the wireless receiver and trans-
mitter establishes connection.
Wired/Wireless Switch:
Select “Wireless” if you use the wireless feature.
Otherwise, select “Wired.”
Volume Control:
Set this to the second line up from minimum. Use the
subwoofer level control on your controller to fine tune.
If your controller does not have a subwoofer level con-
trol, then adjust this to get the desired bass level.
Phase Switch:
Depending on your system and room, the bass in the
crossover region may be smoother if you reverse the
phase of the subwoofer. See the Fine Tuning section of
the manual.
Power Indicator:
When the subwoofer is ON, this LED light will be green.
When the subwoofer is in STANDBY mode, it will be red.
Power / Auto-on Switch:
When in the ON position, the subwoofer will stay on at
all times. In AUTO mode, material with bass will quick-
ly turn the subwoofer on. After around 15 - 30 minutes
of inactivity, the subwoofer will automatically go into
STANDBY mode.
Crossover Defeat Switch:
If you are using a SUBWOOFER or LFE output, you can
disengage the crossover by switching it to OUT. The
crossover should be switched to IN when using high level
inputs or two channel low level inputs.
Crossover Frequency Control:
This low-pass crossover controls what frequencies are
handled by the subwoofer.
ULF Trim:
This compensates for room gain at very low frequen-
cies. Smaller rooms have more boost in the low bass.
Setting this control to 16 Hz gives flat response to 16 Hz
outdoors. Adjust to suit your room.
Voltage Selector Switch:
For 100 - 120V line voltage, set to 120V. For 220 -
250V, set to 240V.
Removable Fuse Holder:
By pushing in and turning counter-clockwise, you can
remove and replace the fuse. Use only the correctly
rated 5 x 20 mm replacement fuses.
Power Input:
This is an IEC socket. Connect
the supplied power cord here. If
your country uses a different
power cord, get one locally.
Antenna:
Orient for opti-
mal reception.
Usually vertical
position is good.
Wireless Channel Selection:
By default, it is set to channel 1.
Unless you have problems with
interference, leave it on channel 1.
XLR Inputs:
If your processor
has balanced out-
puts, use these.
Low Level/Sub Inputs:
For Dolby Digital systems, connect the SUBWOOFER OUT to
either of these inputs. For stereo-only systems, you may connect the
left and right channels to both inputs as explained in the manual.
