In-Ceiling Surround

This product is a vintage Polk model and is not available for sale, but it may still be available in some stores as a closeout or used product. The following text is taken from the original sales brochure for this product and does not reflect current availability. If you happen to have any question or concerns about this product, or any other Polk Audio product, feel free to contact our Customer Service Department at 1-800-377-7655 Monday - Friday, 9am - 5:30pm EST


Round In-ceiling surround loudspeaker.

Available Finishes:

Bipole/Dipole In-Ceiling Surround

The LC80F/X is specifically designed to be a surround speaker in a high-performance theater or multi-channel music system. Sporting two ring radiator tweeters and an 8-inch high performance driver in an angled array, with surround-specific bipole/dipole audio customization options, this is the perfect choice for big audio impact from above.

LC80F/X Features:

Surround-specific solid/diffuse modes: In “Solid” mode, all drivers and tweeters are in-phase, producing a solid, discrete sound-stage. In the “Diffuse” setting, the rear facing tweeter array is out of phase with the front facing array for a more diffuse, less localizable, surround-sound image. Use the setting that sounds best for your placement and application (and if you can’t decide, we can help!).

Paintable grilles let you build them in, and then forget all about them; LCi Series practically disappear into any room.

Dual, offset ring radiator tweeters extend top-end response for incredible details, with a 15° swivel housing for direct high frequency control and excellent imaging even in off-axis listening positions.

Our aerated polypropylene cone is the ideal balance of lightweight stiffness (for more efficient action with less distortion-causing flex) and superior damping properties, for spectacular midrange clarity and punchy bass.

Polk Audio’s proprietary, patented Dynamic Balance® technology allows our engineers to design out distortion-causing driver and system resonances, so you only hear the good sounds.

Lightweight, rigid driver baskets constructed of specially engineered composite materials keep moving parts in rigid alignment and damp performance-robbing resonances for better performance in shallow space installs.

Easily accessible custom audio controls allow you to tweak your sound for optimum performance in any installation: Use the reflective room (tweeter) compensation switch to digitally compensate for harsh reflective surfaces, and the wall distance setting toggle to compensate for proximity to corners or adjacent walls.

PowerPort® bass venting is Polk Audio’s patented design for smoothly transitioning the air flow from the port into your listening area, eliminating turbulence and distortion, for bigger, more efficient, deep bass impact.

Rustproof stainless steel hardware and powder coated aluminum grilles make LCi Series speakers suitable for high moisture areas like bathrooms, transitional spaces or even under eaves or in the ceiling of an enclosed porch. (LCi Series are not suitable for exposed outdoor use. For outdoor speaker fun, use our Atrium® Series.)

LCi Series speakers are timbre-matched to Polk Audio LSi speakers to insure utterly seamless blending from speaker to speaker in systems that combine traditional and built-in speakers.

LCi Series speakers are packaged one-per-box, so you can use singles as front or rear center channels, or as additional-zone speakers anywhere.

Easy one-cut, drop-in installation puts built-in audio within reach, with Perfect Fit templates, a precision flange, and (available) pre-construction brackets; achieve secure, vibration-free efficiency with a simple turn of the patented Rotating Cam system.

All Polk Audio products are made using the best materials and the most advanced manufacturing techniques. They pass the industry’s most exhaustive quality tests, including drop testing, extreme signal response and UV & salt exposure testing. Polk Audio loudspeakers are built to perform for a lifetime.

Driver Complement

Diameter3/4" (1.91cm) 
TypeRing radiator 
Diameter8" (20.32cm) 
TypeDynamic Balance driver with polypropylene cone and rubber surround 


Total Frequency Response30Hz-27kHz 
Upper -3dB Limit26 kHz
Lower -3dB Limit45 Hz
Nominal Impedance4 ohms
Efficiency88 dB
Recommended Amplifier Power10-125 watts per channel
InputsHeavy duty spring-loaded push terminals 


Overall Diameter10 11/16" (27.15cm) 
Mounting Depth (includes 1/2" drywall)5 5/16" (13.49cm) 
Pre-Construction Bracket 
Product Weight (each)4.00 pounds


Unit of Measurepair 
Total Shipping Weight11.00 pounds


Speaker WarrantyLifetime  

Specifications, dimensions and features subject to change without notice. For more information call us at 1-800-377-7655 (USA and Canada). Outside of North America call +1 (410) 358-3600.

LC80F/X Media

LC80F/X Literature

Want to know more? Want to dig just a little deeper to learn about this product? Here's a list of source material that will give more detail, other perspectives, and answer questions you may have.

LC80F/X Accessories

PB LC80i

PB LC80i

$49.95 per pair

Works with Vanishing Series 80F/X-LS, 80F/X-RT