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This will give you better bass quality than using the speaker inputs, because it bypasses your amp or receiver's
amplifier stage. To connect the subwoofer in this way, simply run one or a pair of shielded RCA - RCA interconnect
cables from the output jacks on your component to the "LINE LEVEL" jacks on the Subwoofer's backplate. If you run
one cable, connect it to the “LEFT” input jack. See Figure 1. It is not necessary to use both input jacks on the sub-
woofer.
If you don't have a subwoofer output available, check to see if you have preamp outputs on your preamp, amp, or
processor to be able to use these inputs. If you have only one set of preamp outputs, use a Y-connector to feed both
the amplifier and the subwoofer. See Figure 2. Use a Y-connector to connect the signal to both the LEFT and RIGHT
inputs of the subwoofer. These inputs are summed to mono in the amplifier input stage of the subwoofer.
POWERED SUBWOOFER
SURROUND PROCESSOR OR RECEIVER
+
+
MAIN INPUT
LEFT RIGHT
- LEFT +
- RIGHT +
MAIN PRE OUT
LEFT
RIGHT
REF
6
FIGURE 2 - CONNECTING TO A STEREO AMP OR PREAMP
SURROUND PROCESSOR OR RECEIVER
SUB / MONO OUT
REF
FIGURE 1 - CONNECTING TO A COMPONENT’S SUBWOOFER OUTPUT
SUBWOOFER