7
B1 Subwoofer
Owner’s Manual
2-CHANNEL APPLICATIONS –
CONNECTING TO THE MAIN OUTPUTS
Receiver/Preamplifier
B1 Input Panel
Main
Outputs
Main
Outputs
Figure 10: Connection to main outputs
This configuration is for use with 2-channel preamplifier/power amplifier
combinations or 2-channel receivers that have full-range outputs for the
left and right channels. The internal low-pass filter in the B1 is used to
limit frequency range of the subwoofer, preventing undesirable overlap
with the main loudspeakers.
1. Connect an RCA patch cable between the left main output on the
receiver/preamplifier to the L(eft) Low-Pass Enabled connector on the
B1 rear panel, as shown in Figure 10.
2. Connect an RCA patch cable between the right main output on the
receiver/preamplifier to the R(ight) Low-Pass Enabled connector on
the B1 rear panel.
NOTE: This configuration applies to receivers with preamplifier
outputs or to preamplifier/power amplifier configurations in which
there are two sets of Main outputs. If the receiver has jumpers
from the Pre- or Main-Out to the Amp in connectors or if the
preamplifier has only one set of Main-Out connectors, a
Y-adapter should be used to send the same signal to both the
main power amplifier and the subwoofer(s). Tape Out or Record
Out connectors cannot be used.
MULTICHANNEL APPLICATIONS –
MULTIPLE SUBWOOFER CONNECTIONS
Receiver/Processor
B1 Input Panel
Sub 1
B1 Input Panel
Sub 2
Subwoofer
Output
Figure 11: Connection to multiple B1 subwoofers
This configuration is for use with multiple B1 subwoofers and a
multichannel processor or receiver.
NOTE: The supplied single-RCA patch cord can be used in any
of the three connections described below, but you will need to
purchase an RCA Y-adapter and possibly an additional single-
RCA cable.
1. Connect an RCA patch cable from the Subwoofer or LFE output on
the processor/receiver to the single input on the Y-adapter, as shown
in Figure 11.
2. Connect an RCA patch cable from one of the outputs of the Y-adapter
to the Sub In connector on the first B1 rear panel.
3. Connect an RCA patch cable from the second output of the Y-adapter
to the Sub In connector on the second B1 rear panel.
