Infinity BU-1, Technical Manual, Page: 3 / 16

2
Powered Subwoofer BU1
BU1 CONTROLS AND THEIR FUNCTION
120V ,60Hz
130W
~
LOW LEVEL
INPUT
R
L
L
L
R
R
POWER
50
50
150
100
80
120
VOLUME
CONTROL
WARNING:
TO REDUCE THE RISK OF FIRE OR ELECTRIC
SHOCK, DO NOT EXPOSE THIS APPLIANCE TO RAIN OR MOISTURE.
NRTL/C
UL-1492
CAUTION
RISK OF ELECTRIC SHOCK
DO NOT OPEN
WARNING: SHOCK HAZARD-DO NOT OPEN.
AVIS: RISQUE DE CHOC ELECTRIQUE-NE PAS OUVRIR.
120V~60Hz 130W
MODEL BU1
HCM
NOT SUITABLE FOR IN-WALL MOUNTING
ON OFF
HIGH LEVEL INPUT
HIGH LEVEL OUTPUT
FREQUENCY
Hz
AUTO
POWER
MIN MAX
1
2
3
5
4
1. Auto Power - This Auto On/Off switch controls
whether the BU1’s Automatic turn-on circuit is
active. When the switch is ON , the BU1 will turn
itself on, indicated by a green LED, when it is
plugged in and receiving a signal. When the BU1
has not received a signal for approximately ten
minutes, the unit will revert to the STANDBY mode,
indicated by a red LED. When this switch is OFF,
the unit will revert to the STANDBY mode and will
stay OFF, regardless of input signal. THIS IS NOT
A TRUE AC POWER SWITCH AS IT DOES NOT
DISCONNECT THE AMPLIFIER FROM THE
120VAC LINE.
2. High Level Inputs - These High Level Inputs are for
receivers that do not have line-level “pre-amp out”
or “subwoofer out” jacks. When a pair of main or
satellite speakers are attached to the OUTPUT
terminals, they are driven the full range of
frequencies as generated by the music source
(receiver, amplifier, etc.)
3. Low Level Input - These left and right Line Level
Inputs are normally used when the
receiver/processor has line-level “pre-amp out ”
or “subwoofer out” jacks. If a single cable mono
or subwoofer source is connected to the BU1, a
Y-cable must be connected to the subwoofer for
full output.
4. Volume Control - This controls the volume level
of the subwoofer.
5. Frequency - The Frequency adjustment determines
the upper corner roll-off point for the BU1.