User's Manual
System Configurations
The following pages show some typical connections that you might make in your
installation. They show how the inputs and outputs of the subwoofer's amplifier are con-
nected to your preamplifier or receiver.
Connections to a preamplifier’s subwoofer output
If your preamplifier has a subwoofer
output (often labeled LFE for Low Fre-
quency Effects), it can be connected
to the amplifier’s Left (Mono) input
as shown. This is the simplest and
recommended connection. A receiver
with a sub/LFE output can be con-
nected in the same way.
The subwoofer will play the low fre-
quency range and the other speakers
will play the frequency range deliv-
ered to them by your main amplifier.
If you have a Home Theater pre-
amplifier, it may have an independent
subwoofer volume control. Make sure
this is correctly adjusted, and that
the Sunfire subwoofer’s crossover
frequency is set to 100 Hz. This is by
no means an iron-clad rule, rather
it is a good starting point. (See the
crossover frequency control details on
page 6 and adjustments on page 17).
You can set the sub amplifier's Vol
-
ume control to 0 dB, and then use the
preamplifier’s subwoofer level control
for normal and routine adjustments.
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