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C o n t a c t P o l k A u d i o C u s t o m e r S e r v i c e 1 - 8 0 0 - 3 7 7 - 7 6 5 5 ( O u t s i d e U S : 4 1 0 - 3 5 8 - 3 6 0 0 ) , p o l k c s @ p o l k a u d i o . c o m
Bi-amping [figure 9] allows you to use separate amplifiers for the high and low frequency
sections of your loudspeaker for greater dynamic range and lower distortion. After removing the
jumpers, connect the speaker wires from the high frequency amplifier outputs to the upper set of
terminal posts on each speaker. Follow the same procedure for connecting the low frequency
amplifier outputs to the lower set of terminals. Remember to maintain correct wiring polarity (+
to +, - to -) in all connections.
WALL MOUNTING THE LSi SERIES SURROUND FX LOUDSPEAKERS
The LSi Series Surround FX Loudspeakers feature built-in wall mounting brackets. Follow the
steps below to safely wall mount these speakers. Wall mounting requires basic skills in with tools
such as a drill and a screwdriver. If you are in doubt that you possess the necessary skills or
tools, consult your Polk Audio dealer, or a professional installer.
• Make sure the material on which you plan to mount the speakers (plaster, drywall, paneling,
stone, etc.) can support the weight of the speakers (LSi FX=approx 50lbs/22.5kg ea). Make
sure the locations you select do not conceal electrical wiring or plumbing.
• Prior to installation, hold the speaker in the chosen location to make sure it safely
clears obstacles such as ceiling, adjacent walls, corners, beams, lighting fixtures and
door/window frames.
• Using the keyhole slots in the bracket template (included), mark the installation location
of the four keyhole slots with a pencil [figure 10]. Orient the template so that the small
ends of the keyhole slots are facing "up."
• If you are certain that there is a stud behind the wall surface, drive a #10 screw (not included)
through the wall and into the stud [figure 11a].
• If there is no stud behind the wall at the chosen location, install a #10 wall anchor (not
supplied) into the wall by following the wall-anchor-manufacturer's instructions [figure 11b].
• For masonry walls, use a masonry drill bit and #10 masonry anchor and screw (not included).
• Tighten screws into stud or wall anchors, leaving screw heads protruding 1/16" (1.6mm).
• Make all wire attachments now. (See previous page.)
• Line up the keyhole slots on the back of the speakers so that the screw heads pass through
the large center hole of the slots.
• Let the speaker and slide straight down, allowing the screw head to slip behind the smaller
end of the keyhole slot [figure 12].
• Tug gently on the speaker to make certain that the screws and bracket are properly aligned
and that the wall anchors are secure.
• If the bracket is not held snug against the wall by the screw heads, remove the speaker
from the wall, drive the screws in a little further and then remount the speaker.
TAKING CARE OF YOUR LSi SERIES LOUDSPEAKERS
Your new LSi Series Loudspeakers are constructed of a rugged material that can be dusted or
cleaned with a damp cloth. Avoid harsh detergents and cleaning fluids, as they can permanently
damage your speakers' finish [figure 13]. Vacuum the grilles to remove dust.
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