Infinity BU-120 Owner's Manual page 9

Figure 3b. You can use this method
(2 "Y"connectors) if your preamp
has only one set of outputs.
Figure 4. Method when using single
subwoofer or two subwoofers.
(Preamp with mono
subwoofer output)
Male-to-Female
+ L –
SPKR
In
SPKR
Out
LEFT
SUBWOOFER
PLATE
C
ONNECTING
When using a single subwoofer, you MUST use a pair of stereo low-level leads from your
preamplifier' s outputs. When using two subwoofers, one for the left and another for the right
channel, connect the left preamplifier output to BOTH the left and right LOW-LEVEL INPUTS
of the subwoofer used for the left channel by using a Female-to-Male "Y" connector at the
subwoofer' s input and the right channel preamplifier output to both jacks of the right channel
subwoofer in the same manner (see Figure 4). If the preamplifier has a mono subwoofer output,
you'll also need a Male-to-Female "Y" connector to split the mono signal to the subwoofer pair
(see Figure 4).
SUB OUT
"Y" Connector
– R +
Low-Level In
L
R
Y S
OUR UBWOOFER
OUTPUTS
(Preamp with one
set of outputs)
L R
"Y" Connector
LEFT
RIGHT
OUTPUTS
(Preamp with one
OR
set of outputs)
L R
To Left
To Right
LEFT
Female-to-Male
RIGHT
"Y" Connector
BU Series Powered Subwoofers – Owner' s Manual 9
(
CONT
TO SATELLITE
SPEAKER AMPLIFIER
+ L – – R +
Low-Level In
SPKR
In
L
SPKR
R
Out
SUBWOOFER
PLATE
+ L –
SPKR
In
SPKR
Out
RIGHT
SUBWOOFER
PLATE
.)
– R +
Low-Level In
L
R