Polk Audio Speaker System LC80fx User Manual

Cutsheet for LC80FX & LC65FX  
High Performance In-Wall/In-Ceiling Loudspeakers  
Timber-matched to Polk Audio’s LCi-Series High Performance Loudspeakers, the LC65FX and LC80FX make the ideal In-wall  
and in-ceiling surround speakers respectively. LCFX surround 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.  
Overall  
Diameter  
10-11/16"  
(27.15cm)  
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.  
a
Cutout  
Diameter  
9-3/8"  
Hours: Mon.-Fri., 9am-5:30pm EST.  
Overall Depth  
5-5/16" (13.5cm)  
(24cm)  
LC80FX Dimensions  
Overall Diameter  
Cutout Diameter  
Overall Depth  
10-11/16" (27.15cm)  
9-3/8" (24cm)  
5-5/16" (13.5cm)  
4-5/8" (11.75cm)  
with 1/2" of drywall  
Mounting Depth  
Available Finish: Paintable White  
Mounting Depth  
(Assumes 1/2" [12.7mm] drywall)  
4-5/8" (11.75cm)  
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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  
Center  
Subwoofer  
Left  
Right  
Left/Right Orientation: LCFX Surround 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 LC80FX allows 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  
LC65FX  
LC65FX  
IMAGING  
Solid/Diffuse Switch (LC65FX/LC80FX)  
LCFX Surround Loudspeakers offer switchable “Solid” and “Diffuse” imaging  
patterns to create the surround effect you desire.  
Surround Right  
Surround Left  
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 are the best judge of what kind of  
surround imaging you prefer.  
Surround Back Left  
Surround Back Right  
The schematic drawing of the room represents an ideal placement for all  
speakers in either a 6.1 or 7.1 speaker system.  
SETTING RECOMMENDATIONS  
Image Setting  
Center  
Left  
Right  
LC65FX In-wall Surround Location  
Surround speakers located close, straight to the sides  
of your listening area, and approximately six feet off  
the floor  
Recommendation  
Diffuse  
Subwoofer  
Surround speakers located behind your listening area  
and approximately six feet off the floor  
Solid  
LC80FX In-ceiling Surround Location  
Surround speakers located straight to the sides of your  
listening area.  
Diffuse  
Solid  
Surround speakers located behind your listening area  
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  
a response “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.  
LC80FX  
LC80FX  
Surround Left  
Surround Right  
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).  
Surround Back  
Left  
Surround Back  
Right  
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8 0 0 . 3 7 7 . 7 6 5 5 ( U S A  
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4 1 0 . 3 5 8 . 3 6 0 0 ( W o r l d w i d e )  
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SPECIFICATIONS  
SPECIFICATIONS  
LC80FX  
LC65FX  
Product Weight: 4.0 lbs. (1.81kg)  
Product Weight: 4.35 lbs. (1.97kg)  
PERFORMANCE  
PERFORMANCE  
POWER HANDLING (WATTS/CHANNEL)  
10-125W CONTINUOUS  
POWER HANDLING (WATTS/CHANNEL)  
IMPEDANCE (NOMINAL)  
10-125W CONTINUOUS  
4 OHMS  
IMPEDANCE (NOMINAL)  
FREQUENCY RESPONSE (OVERALL)  
EFFICIENCY (2.83V@1M)  
SPEAKER WEIGHT  
4 OHMS  
30HZ–27KHZ  
88dB  
FREQUENCY RESPONSE (OVERALL)  
EFFICIENCY (2.83V@1M)  
30HZ–27KHZ  
88dB  
SPEAKER WEIGHT  
4.35 LBS (1.97KG)  
4.0 LBS (1.81KG)  
DRIVER COMPLEMENT  
DRIVER COMPLEMENT  
MIDBASS  
1-6 1/2" (16.51CM)  
AERATED POLYPROPYLENE  
DYNAMIC BALANCEDRIVER  
MIDBASS  
1-8" (20.32CM)  
POLYPROPYLENE  
DYNAMIC BALANCEDRIVER  
TWEETER  
2-3/4" (1.91CM)  
TWEETER  
2-3/4" (1.91CM)  
RING RADIATOR TWEETERS  
RING RADIATOR TWEETERS  
CONNECTIONS  
CONNECTIONS  
SPEAKER WIRE  
SPEAKER WIRE  
MAXIMUM WIRE SIZE ACCOMMODATED  
MINIMUM RECOMMENDED  
12 AWG  
18 AWG  
MAXIMUM WIRE SIZE ACCOMMODATED  
MINIMUM RECOMMENDED  
12 AWG  
18 AWG  
INPUT CONNECTORS  
HEAVY-DUTY SPRING LOADED  
PUSH TERMINALS  
INPUT CONNECTORS  
HEAVY-DUTY SPRING LOADED  
PUSH TERMINALS  
Web Address:  
Web Address:  
For more information on the LC65FX, log onto  
For more information on the LC80FX, log onto  
home/LC65FX_manual.pdf  
home/LC80FX_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.  
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