- LCi-RTS105
- LCi-RTS-C
RTS Series Models
In-Wall (Rectangle)
- LCi-RTS100
In-Ceiling (Round)
- LCi-RTS FX
Surround
Consistently Outstanding Performance
For The Best Home Theaters.

The Absolute Best In Stealth Home Theater: Reference Theater Series
Now there's no question: invisible in-wall speakers are the sine qua non of home theater design. Yet the speakers themselves, until now, have always left something to be desired in their performance. Any professional will confess: in-walls just could not beat free-standing loudspeakers for depth, realism and impact.
But what if you took the components of today's best freestanding loudspeakers and transplanted them into easy-to-install in-wall and in-ceiling loudspeakers?
Seems like a no-brainer, but it took the audio geniuses at Polk Audio to make it a reality. By designing loudspeakers to conquer the variables like placement and construction, Polk Audio has engineered a loudspeaker that delivers consistently superior performance no matter where it's installed: the RTS Series In-Wall/In-Ceiling Loudspeakers. Today's sweetest home theater and music installs, in today's highest-end homes, rely on RTS Series Speakers to complete their clean, high-tech designs with professional-quality sound.
The Evolution Of Consistently Excellent In-Wall Sound
In the realm of freestanding loudspeakers, nothing comes close to Polk Audio's awesome, award-winning LSi Series. State-of-the-art materials and the ultimate in design engineering have given the LSi Series an unbeatable audiophile reputation. But sometimes, in custom theater or whole-home speaker system designs, floorstanding loudspeakers would take up too much space.
In the past, system designers and customer installers had to fall back on clumsy second-thought in-wall speakers. But by specially engineering the RTS Series In-Wall/In-Ceiling Loudspeakers to utilize LSi components, and to defeat issues like placement and enclosure volume, Polk Audio has raised the bar for in-wall loudspeaker performance, and made this high performance speaker the go-to solution for today's best installs.
Building Custom Or Retrofitting Existing:
Never Sacrifice Professional Sound For In-Wall Convenience
It's easier than ever before to achieve the sound you demand—full and dynamic, realistic and deep; all the rich elements delivered by the best freestanding loudspeakers—using built-in speakers that disappear into your decor. The four RTS Series speakers, together or apart, are perfect for every sound application that demands the highest performance; applications that used to be the exclusive domain of high-end freestanding loudspeakers. This is because RTS Loudspeakers are precisely tuned to their enclosure shape and volume (just as a superior floorstanding speaker is tuned to its enclosure). By designing the variables out of the equation, you're left with only the best: consistently outstanding performance, no matter where you install the RTS Series.
RTS Loudspeakers are perfect for a home theater that delivers impact and realism; deep, rich, atmospheric music in one room or in your whole house, and even gaming; invisible RTS Loudspeakers put you in the center of the action. With the patent-pending Stud-Lock Mechanism, RTS Speakers drop solidly right into place in new-build or existing ceilings and walls. So there's no excuse to skimp on performance when you want audiophile sound quality without cluttering your home with speaker boxes.
Plan your custom RTS installations to include CSW Built-In Subwoofer Systems and experience the full range of dynamic sound possibilities without ever laying eyes on a speaker box. Or, use RTS Series In-Wall/In-Ceiling Loudspeakers to compliment and enhance your existing LSi Series set-up, providing surround sound or extended surround sound environments for unbeatable music or home theater installations.
When you don't have to see the speakers to experience the very best in sound quality, your options are truly endless.
RCi Series Features
"Just Drop It In" Features
Integrated Performance Enclosure design ensures "perfect volume" performance in an enclosure that is the same size as the wall cut-out you'll make, so installing them in existing walls is just as easy as naked stud installations in new-build situations. The Stud-Lock Mounting System (included with RTS105, RTS100, RTSf/x models) creates a rigid platform and snug fit that cuts performance-robbing resonances and structural vibrations to increase dynamic range, clarity and ultimate sound quality. And yes, we did just say naked stud.
THX Ultra2-Certified
It assures you of the superior sound performance and exceptional dynamic range that will make your home theater the envy of the neighborhood. The RTS100 is the first in-ceiling speaker to ever be awarded THX Ultra-2 Certification!
LSi-Level Loudspeaker Technology
The very same award-winning, audiophile-impressing driver and tweeter technologies found in Polk Audio's top-of-the-line LSi Series has been engineered into the RTS Series, for astonishing performance in a speaker that disappears into its surroundings.
Acoustically Transparent Grilles
Two acoustically engineered speaker grilles are included. Choose the paintable aluminum-mesh grille, specially designed to allow one of the most realistic on- and off-axis performances with 75% open space in the mesh. Select the acoustically transparent cloth grille to experience full-on THX Ultra2-level performance. Both grilles blend perfectly with your decor.
Aerated Polypropylene Drivers
Fortified with Dynamic Balance Technology, for lightweight efficiency and lower-distortion, these high-end drivers deliver superb mid-range clarity and punchy lower frequency response with more realistic blending.
Ring Radiator Tweeters
Found only in the highest-end home audio, and rarely in built-in speakers, the Ring Radiator excels at smooth, accurate extended highs and astonishing detail. In the RTS Series, specially designed faceplate geometry refines its already stellar off-axis characteristics.
Exclusive Advanced Built-In Technologies
Enclosure Stiffening Technology reduces distortion and eliminates wasted energy for louder, cleaner performance than any other in-wall speakers. Specially engineered crossover networks, featuring more sophisticated notch filters instead of mere resistors, and Wall Distance Toggles allow easy space-specific tweaking. Acoustically transparent grilles help produce a wider, more realistic soundstage than any other hidden speaker.
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