Infinity BU-80 - Manual (Page 10)

10 ◆ BU Series Powered Subwoofers – Owner’s Manual
Figure 5. Method when
using single subwoofer.
Figure 6. Method when
using two subwoofers.
C
ONNECTING
Y
OUR
S
UBWOOFER
(
CONT
.)
The subwoofer may be connected to your system using the HIGH-LEVEL INPUTS (4) on the
plate located on the rear panel of the subwoofer. Use speaker wire, maintaining proper polarity
(+ to + and – to –). Attach the speaker wire to the left and right HIGH-LEVEL INPUTS on the
subwoofer and the other ends to the proper left and right OUTPUTS on your amplifier or
receiver (see Figure 5).
If you plan to use two subwoofers (one for the left and the other for the right channel) connect
wires from the left and right OUTPUT on your power amplifier or receiver and attach the other
ends to the corresponding HIGH-LEVEL INPUTS on each subwoofer. Observe polarity
(see Figure 6).
AMPLIFIER
OUTPUTS
+ – – +
RIGHT LEFT
SUBWOOFER
PLATE
SPKR
In
SPKR
Out
+ L – – R +
50 150
L
R
Low-Level In Crossover
Frequency
Power
Phase
RIGHT
SUBWOOFER
PLATE
LEFT
SUBWOOFER
PLATE
AMPLIFIER
OUTPUTS
+ – – +
RIGHT LEFT
SPKR
In
SPKR
Out
+ L – – R +
SPKR
In
SPKR
Out
+ L – – R +