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High Level connection
If the electronics in your system does not have a
preamp level output, the subwoofer can be connected
to speaker outputs using the Speaker Level Inputs. The
Subwoofer amplifier has speaker wire binding posts,
the type found on many amplifiers. They can accept
ether bare wires or wires terminated with lugs.
To attached the bare wires to the connector, strip off
about 3/8" (8mm) of the insulation. Twist the wire
strands into a bundle. Make sure their are no loose
strands. Unscrew the terminal to expose the hole in the
center shaft of the terminal. Insert the wire into the
hole. Turn the terminal to clamp the wire in place.
If the wires are terminated with lugs, simply unscrew
the terminal and insert the lug. Turn the terminal to
clamp the lug in place.
NOTE: Be sure to maintain proper polarity — that is
connect + to + (positive to positive) and – to - (nega-
tive to negative). All wire has one conductor marked in
some way to make it easy to trace the connections. Typi-
cally there is a stripe on the insulation or a rib molded
into it. Or the insulation will be transparent and the wire
strands of one conductor will be copper colored and the
other will be silver colored.
With a Speaker Level Input connection both the sub-
woofer and the main speakers are connected directly
to the amplifier. Consequently the main speakers will
operate full range. Take this into account when setting
the crossover frequency of the subwoofer. The crossover
frequency should be set at approximately the same
frequency where the bass response of the main speakers
starts to decrease. That will avoid a situation where both
the main speakers and the subwoofer are reproducing
a part of the bass range, which would produce an un-
natural sound.
In addition to the connection method shown above you
may also connect the amplifier to the main speakers and
then run extension wires from the main speakers to the
subwoofer. Which one you use will depend largely on
you physical set up of your room.
Left Main
Speaker
Amplifier or Receiver
Subwoofer Amplifier
Right Main
Speaker
7
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