Polk Audio LC80FX User manual

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www.PolkAudio.com /800.377.7655 (USA & Canada) /410.358.3600 (Worldwide) 1
Cutsheet for LC80FX &LC65FX
High Performance In-Wall/In-Ceiling Loudspeakers
Timber-matched to Polk Audio’s LCi-Series High Performance Loudspeakers, the LC65FXand LC80FXmake the ideal In-wall
and in-ceiling surround speakers respectively. LCFXsurround speakers have a switchable “Solid” and “Diffuse” imaging feature
to create the surround effect you desire. Paintable, powder-coated aluminum grilles and flanges enable these speakers to virtually
disappear in your room. Rust-resistant hardware and durable, moisture resistant materials ensure long-term reliability. Both LCFX
surround models install easily, and the LC65FX uses the LC65’s preconstruction bracket and performance enclosure.
LC80FX Dimensions
Overall Diameter 10-11/16" (27.15cm)
Cutout Diameter 9-3/8" (24cm)
Overall Depth 5-5/16" (13.5cm)
Mounting Depth 4-5/8" (11.75cm)
with 1/2" of drywall
Available Finish: Paintable White
LC80FX
Hardware (included)
• Two LC80FX Speakers
• Two Speaker Mounting Templates
• Two Paint Masks
•One Grille (perforated)
• Logo Badge
• LC80FX Manual
• Registration Card
Important Note:
If anything is missing or damaged, or if your LC80FX
speakers fails to operate, notify Polk Audio Installer
Support Services immediately at 800-377-7655.
Hours: Mon.-Fri., 9am-5:30pm EST.Cutout
Diameter
9-3/8"
(24cm)
Mounting Depth
(Assumes 1/2" [12.7mm] drywall)
4-5/8" (11.75cm)
Overall
Diameter
10-11/16"
(27.15cm)
Overall Depth
5-5/16" (13.5cm)

2Polk Audio Custom Install Product: Model Number
LC65FX
Hardware (included)
• Two LC65FXSpeakers
• Two Speaker Mounting Templates
• Two Paint Masks
• One Grille (perforated)
• Logo Badge
• LC65FX Manual
• Registration Card
Important Note: If anything is missing or damaged,
or if your LC65FX speaker fails to operate, notify
Polk Audio Installer Support Services immediately
at 800-377-7655. Hours: Mon.-Fri., 9am-5:30pm EST.
LC65FX Dimensions
Overall Height 14-5/16" (36.4cm)
Overall Width 8-1/2" (21.59cm)
Cutout Height 12-3/4" (32.4cm)
Cutout Width 7-1/4" (18.41cm)
Overall Depth 3-3/4" (9.53cm)
Mounting Depth 3-1/4" (8.26cm)
with 1/2" of drywall
Available Finish: Paintable White
Cutout Width
7-1/4" (18.41cm)
Cutout
Height
12-3/4"
(32.4cm)
Mounting Depth
(Assumes 1/2"
[12.7mm] drywall)
3-1/4" (8.26cm)
Overall
Height
14-5/16"
(36.4cm)
Overall Width
8-1/2" (21.59cm)
WIRE RECOMMENDATIONS
Runs Gauge
Lengths up to 25' 18 or 16
Lengths greater than 25' 16 or 14
but less than 50'
Lengths greater than 50' 14 or 12
but less than 75'
Lengths greater than 75' 12
Overall Depth
3-3/4" (9.53cm)

www.PolkAudio.com /800.377.7655 (USA & Canada) /410.358.3600 (Worldwide) 3
SETTING RECOMMENDATIONS
LC65FX In-wall Surround Location
Surround speakers located close, straight to the sides
of your listening area, and approximately six feet off
the floor
Surround speakers located behind your listening area
and approximately six feet off the floor
LC80FX In-ceiling Surround Location
Surround speakers located straight to the sides of your
listening area.
Surround speakers located behind your listening area
Image Setting
Recommendation
Diffuse
Solid
Diffuse
Solid
SPEAKER PLACEMENT
Polk Audio LCFX Surround Loudspeakers give you nearly endless placement
options. But remember that where you place your surround speakers requires
some careful thought, as installation requires that you cut a hole in your wall
or ceiling
Left/Right Orientation: LCFXSurround Speakers have a left/right orientation,
and each speaker is clearly marked on its baffle for installation on either the
right or left. Right and left are defined from your listening area as you face
your system’s center channel.
Directing the Driver (LC80FX)
The fixed 15° angled driver in the LC80FXallows you to direct the midrange
towards your listening area when used for front stage (left-center-right). When
used as rear surrounds or as 6.1 or 7.1 back speakers, direct the driver towards
the listening area for a more direct sound field or toward a wall for a more
diffuse sound field
IMAGING
Solid/Diffuse Switch (LC65FX/LC80FX)
LCFXSurround Loudspeakers offer switchable “Solid” and “Diffuse” imaging
patterns to create the surround effect you desire.
A“Diffuse” image is defined as one which creates a “cloud” of sound; think
of the effect as ambient sounds which fill the environment all around you.
A“Solid” image is one which creates a more pin-point sound; sound is more
directional and localized. Ultimately you arethe best judge of what kind of
surround imaging you prefer.
The schematic drawing of the room represents an ideal placement for all
speakers in either a 6.1 or 7.1 speaker system.
ROOM ENVIRONMENT CONTROL
Wall Distance Switch
In-wall and in-ceiling loudspeakers excel when placed more than 2' (60cm) from
side walls. If position limitations demand that in-wall loudspeakers be installed
closer than 2'(60cm) from side walls, the proximity of the surface can result in
aresponse “bump” between 50 and 200Hz. This can cause in-wall speakers
to sound “boomy.” The Wall Distance Switch flattens response and tunes out
“boominess” without sacrificing deep bass response, for more lifelike sound.
If placement is closer than 2' to a wall: Engage the Wall Distance Switch
(“Wall Dist.”) to match the <2' setting. Recommended speaker distance from
side walls is 2 feet (60cm).
LC65FX
LC65FX
Surround Left Surround Right
Surround Back Right
Surround Back Left
Subwoofer
Center
Right
Left
LC80FX LC80FX
Surround Left Surround Right
Surround Back
Right
Subwoofer
Center
Right
Left
Surround Back
Left

4Polk Audio Custom Install Product: Model Number
SPECIFICATIONS
LC80FX
Product Weight: 4.0 lbs. (1.81kg)
PERFORMANCE
POWER HANDLING (WATTS/CHANNEL) 10-125W CONTINUOUS
IMPEDANCE (NOMINAL) 4 OHMS
FREQUENCY RESPONSE (OVERALL) 30HZ–27KHZ
EFFICIENCY (2.83V@1M) 88dB
SPEAKER WEIGHT 4.0 LBS (1.81KG)
DRIVER COMPLEMENT
MIDBASS 1-8" (20.32CM)
POLYPROPYLENE
DYNAMIC BALANCE™DRIVER
TWEETER 2-3/4" (1.91CM)
RING RADIATOR TWEETERS
CONNECTIONS
SPEAKER WIRE
MAXIMUM WIRE SIZE ACCOMMODATED 12 AWG
MINIMUM RECOMMENDED 18 AWG
INPUT CONNECTORS HEAVY-DUTY SPRING LOADED
PUSH TERMINALS
PERFORMANCE
POWER HANDLING (WATTS/CHANNEL) 10-125W CONTINUOUS
IMPEDANCE (NOMINAL) 4 OHMS
FREQUENCY RESPONSE (OVERALL) 30HZ–27KHZ
EFFICIENCY (2.83V@1M) 88dB
SPEAKER WEIGHT 4.35 LBS (1.97KG)
DRIVER COMPLEMENT
MIDBASS 1-6 1/2" (16.51CM)
AERATED POLYPROPYLENE
DYNAMIC BALANCE™DRIVER
TWEETER 2-3/4" (1.91CM)
RING RADIATOR TWEETERS
CONNECTIONS
SPEAKER WIRE
MAXIMUM WIRE SIZE ACCOMMODATED 12 AWG
MINIMUM RECOMMENDED 18 AWG
INPUT CONNECTORS HEAVY-DUTY SPRING LOADED
PUSH TERMINALS
SPECIFICATIONS
LC65FX
Product Weight: 4.35 lbs. (1.97kg)
Web Address:
For more information on the LC80FX,log onto
www.polkaudio.com/downloads/manuals/
home/LC80FX_manual.pdf
Web Address:
For more information on the LC65FX,log onto
www.polkaudio.com/downloads/manuals/
home/LC65FX_manual.pdf
If you have questions, please contact your Authorized
Polk Audio Dealer or Customer Service at 1-800-377-7655
Monday through Friday 9am-6pm EST.