Using the speaker-level inputs
If
you are using a receiver that does
not have a subwoofer output or line-level
outputs (pre-outs), you can
connect its speaker out-
puts to the subwoofer's
speaker-level inputs. The
front speakers can still
be connected to your
receiver.
The subwoofer's
internal amplifier supplies
the power to reproduce
the low frequency range.
It
receives a sample
of
the signal
going to your
front speakers.
(An insignificant
fraction
of
your
receiver's power
is
transferred to
the subwoofer).
There is no
need to use the
speaker-level
inputs if you are
+
using a separate preamplifier/
processor and a power amplifier.
Such systems are best connected
using the line-level inputs as shown
in
the previous diagrams. However,
if you are using the line-level inputs
and there is a excessive amount
TO FRONT
SPEAKERS
of
noise or hum present, using the
speaker-level inputs may yield a
lower background noise level.
The subwoofer's two negative
posts are joined internally (com-
mon-grounded). Your receiver/pow-
er amplifer must also
be
internally
common-grounded or you cannot
use this connection. Contact the
manufacturer of your receiver to
make sure its outputs are common
grounded.
14
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SUJ?fire
User's
Manual
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