Polk Audio Monitor XT12 Serie Manual Del Propietário página 8

Subwoofer Connection Options
There are three options for connecting an input to your subwoofer: LINE IN, SPEAKER LEVEL IN, and LFE.
1
LINE IN SETUP
LINE IN
This method is recommended for systems with no LFE/
subwoofer output jack, such as 2-channel systems.
1. Power-off the amplifier/receiver and disconnect the
subwoofer from the AC socket.
2. Connect standard RCA cables from the front left and right
pre-out jacks of the receiver.
3. Connect the subwoofer to an AC power source and turn
it on.
4. Set the default volume to the 12 o'clock position.
5. Set the low-pass filter on the subwoofer to the
appropriate frequency.
2
SPEAKER LEVEL IN SETUP
This method is recommended for amplifiers/receivers that do
not have LFE/subwoofer or pre-out jacks.
1. Power-off the amplifier/receiver and disconnect the
subwoofer from the AC socket.
2. Connect standard speaker cables from the speaker output
terminals of the amplifier/receiver. Most amplifiers and
receiver speaker terminals allow two sets of wires to be
connected to one terminal set (one for the main speaker
and one for the subwoofer).
IMPORTANT NOTE: One terminal on each channel input is
marked with a red band (+) and the other is marked with
a black band (–). Make certain that you connect the wire
from the red (+) terminal of your amplifier/receiver to the
red (+) terminal of the subwoofer and the wire from the
black (–) terminal of your amplifier/receiver to the black
(–) terminal of the subwoofer. It is essential to connect
all speakers in the system to the amplifier in the same
way (to the correct polarity.) If you experience poor bass,
one or more of the channels may be connected to the
incorrect polarity and may need to be rewired. Pay close
attention and connect positive to positive and negative to
negative on all channels.
3. Connect the subwoofer to an AC power source and turn
it on.
4. Set the default volume to the 12 o'clock position.
8
3
LFE SETUP
Follow the steps in the appropriate section below depending
on whether or not you have a Y adapter.
With a Y adapter
1. Power off the amplifier/receiver and disconnect the
subwoofer from the AC socket.
2. Connect a Y adapter to the RCA input on the amplifier and
connect the LFE cable from your receiver to the Y adapter.
3. Turn the low-pass filter knob on the subwoofer to 160 Hz.
4. Set the default volume to the 12 o'clock position.
5. Connect the subwoofer to AC power and turn it on.
Without a Y adapter
1. Power off the amplifier/receiver and disconnect the
subwoofer from the AC socket.
2. Connect the LFE cable from your receiver to the left white
RCA line input.
3. Turn the low-pass filter knob on the subwoofer to 160 Hz.
4. Set the default volume to the 12 o'clock position.
5. Connect the subwoofer to AC power and turn it on.
8