Full-range, high performace, bandpass, dual-port in-ceiling loudspeaker.
9 5/8" Diameter
Audiophile Performance, Cutting-edge Stealth Design
Mount your woofer behind your main driver array, and suddenly you’re able to extend a speaker’s dynamic range into previously unexplored areas! Especially for a built-in in-ceiling speaker. The 900-LS delivers surpisingly broad coverage and bold, full-range audio performance. Big enough to use as stealth mains, stealthy enough to use as hidden surrounds or alternate-zone speakers.
Vanishing 900-LS Features:
The full-range 3-way driver array means you get full-size speaker performance in a built-in!
Extra deep well design with a Cassini oval woofer mounted above and behind the main driver & tweeter array, for broad coverage and dynamic full-range audio performance in a small diameter built-in.
Vanishing® Series built-in speakers feature our exclusive wafer-thin Sheer-Grille, a magnetically-secured grille that protrudes only 7mm from its surroundings. Sheer-Grilles have nearly transparent, ultra-small perfs, and are acoustically inert, for dynamic, unimpeded sound and more uniform coverage, even in larger rooms.
Painted to match your décor, Vanishing Series built-in speakers are virtually indistinguishable from their surroundings.
Enhanced, reengineered ring radiator tweeters extend top-end response for incredible details and realistic imaging.
Reflective surfaces in rooms can make sound brighter and cause image distortion. Engaging the Vanishing reflective room compensation feature (by selecting the low setting) lowers the tweeter level to compensate for reflective surfaces. Vanishing reflective room compensation is a custom audio control that cuts the level only in the 4-5kHz range, exactly where reflectivity destroys sound quality. Outside this narrow 1kHz band, the tweeter retains its detailed and accurate high frequency response, for no loss of realistic musical details.
Vanishing Series LS speakers are timbre-matched to Polk LSi speakers to insure utterly seamless blending from speaker to speaker in systems that combine traditional and built-in speakers.
If positioning limitations demand that your loudspeakers be installed closer than 2 feet from side walls, the proximity of the surface can result in a response bump between 50 and 200Hz. This can create boomy sound. The Vanishing wall distance toggle switch is a custom audio control that adjusts the crossover to flatten response and tune out boominess, without sacrificing deep bass response, for more lifelike sound and more flexible placement.
Dual bandpass bass ports are highly efficient in small enclosures, and smoothly funnels the angled woofer’s low frequencies down around the driver array, eliminating “chuffing,” so your small, practically invisible in-ceiling speakers achieve superior full-range blending and broad coverage with surprisingly deep bass.
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 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 loudspeakers are built to perform for a lifetime.
|Diameter||3 1/4" (8.26cm)|
|Type||Dynamic Balance driver with aerated polypropylene cone|
|Type||Dynamic Balance woofer with mineral-filled polypropylene cone|
|Total Frequency Response||28Hz-33kHz|
|Upper -3dB Limit||29 kHz|
|Lower -3dB Limit||40 Hz|
|Nominal Impedance||8 ohms|
|Recommended Amplifier Power||10-150 watts per channel|
|Inputs||Gold-plated spring-loaded posts|
|Cut-Out Diameter||8 3/16" (20.80cm)|
|Overall Diameter||9 5/8" (24.45cm)|
|Mounting Depth (includes 1/2" drywall)||8 7/8" (22.54cm)|
|Pre-Construction Bracket||PB LC60i|
|Overall Depth||9 3/8" (23.81cm)|
|Unit of Measure||each|
|Total Shipping Weight||10.5 pounds|
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.
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.
Frequently Asked Questions
- Where do in-wall and in-ceiling speakers go?
- Why are my speakers distorting and popping?
- What's the best way to install in-wall or in-ceiling speakers?
- What wire should I get? What gauge?
- How do I choose between all the different home audio speakers?
- What floorstanding speakers match in-wall speakers?
- How long is the warranty on Polk loudspeakers?
- How do I obtain service for my loudspeakers?
- The Challenges of Custom Installation (PDF)
- Are you looking for a Performance Enclosure for your in-wall product?
Works with Vanishing Series 900-LS, 90-RT, 620-RT and TCi Series TC60i, TC620i