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
Floorstanding Loudspeaker, Built-in 8'-inch Subwoofer
High Definition Speakers for High Definition Sources
New high definition audio formats, from DVD and Blu-Ray to also-rans like Super Audio CD and DVD-Audio, all demand a new level of performance from your loudspeakers. The LSi15 is a floorstanding loudspeaker that delivers superior linearity, definition and imaging, as well as bass response that's rich, deep and satisfying. It is highly accurate and intensely musical; built to exploit your favorite high definition sources..
Low level line (filtered) and LFE (unfiltered) subwoofer inputs access the 8" built-in subwoofer, which allows the LSi15 to deliver truly astounding, ultra-dynamic full-range performance.
Ring Radiator Tweeters
The ultra-high performance Ring Radiator Tweeter is found on ultra-high end, luxury-priced speakers. We've brought the Ring Radiator down to earth for your enjoyment. In the LSi Series, you will experience its precise accuracy, meticulous detail and extended, low distortion frequency response at a fraction of the price.
Dynamic Balance Aerated Polypropylene Drivers
Why does the LSi Series sound so warm and natural? It's what they're made of that matters. Aerated Polypropylene is stiff on the outside, for excellent transient response, but "light & chewy" on the inside, providing light mass with importrant damping qualities. Using our patented, laser-based Dynamic Balance process, we've eliminated areas of resonance on the cone in the planning stages, so bad sounds never make it to the final product. As a result, the LSi Series sounds like a Polk Audio loudspeaker should: realistic, transparent, wide and embracing, with no distortion even at lifelike volume levels.
Cascade Tapered Array
This advanced crossover configuration works with the multi-driver array to deliver wider dispersion and greater midrange accuracy. The LSi Series reveals realistic sound, even in off-axis listening positions, and improved image focus and detail.
The LSi Series is not just single-design speakers tossed together in pairs. We've engineered them to be mirror-imaged pairs, with specific Left and Right designations. Mirror-imaging the pairs produces astonishingly tight focus and truly arresting three-dimensional imaging with minimized room reflections. Your audio opens up, naturally.
Cast Aluminum Driver Baskets
Rigid Cast Aluminum Driver Baskets resist flexing and "ringing" for ultra-tight bass and coloration-free midrange.
Non-Resonant Braced Piano Gloss Enclosure
Superior workmanship is plainly evident in the furniture-grade piano finish of each LSi Series speaker. It's a loudspeaker that lives up to its reputation for classy presentation, and blends well with traditional or modern decor. Inside, the enlosure is extensively braced with heavy duty MDF and damped with professional damping material. No energy is lost in unwanted cabinet resonances, for smooth, untarnished reproduction of even the most extreme audio. Next time you meet them, give them The Knuckle Test (knock, knock!) and feel the solid, non-resonant build quality.
Real Wood Veneer Panels
They look great, and serve a purpose, too. These solid, non-resonant, 1.5"-thick heavy duty panels reinforce the enclosure's solid quality, helping it remain totally and more efficiently acoustically inert. Choose beautiful natural Cherry Wood or Ebony Wood finishes to complement your home. (LSiC & LSiF/X models available in Black Gloss only.)
PowerPort Bass Venting
Floor-coupled on Floorstanding models, traditional rear-firing on other models, the patented PowerPort Bass Venting System smooths the big moving air turbulence at the mouth of the speaker's bass port, effectively enhancing deep, musical bass response and aiding over-all full-range blending between frequencies. Bass response in the LSi Series is efficient, precise, natural, unimpeded by distortion. This is lifelike bass you can feel all over.
LSi Series speakers overcome the midbass "boominess" that can make vocals sound unnaturally "chesty" with another patented technology: Acoustic Resonance Control. The ARC Port is a separate port coupled to the bass port and tuned to supress the internal cabinet resonances that can interfere with high performance audio reproduction. You will hear clear, resonance-free midrange and more accurate vocal reproduction in the LSi Series. (Available on all LSi Series models except LSiF/X, where there's less call for accurate vocal reproduction.)
All models of the LSi Series are engineered to be safe when placed near sensitive AV equipment like monitors or TVs. (Available on all LSi Series models except LSiF/X, which never goes near your TV anyway.)
High performance materials minimize the need for electronic manipulation of audio reproduction (that is, the LSi Series sounds great from the start), but we've designed a high performance crossover system to boost performance just that much more. Premium components, like Mylar Bypass Capacitors, extend and flatten responses, especially in the higher, detail-oriented frequencies. You will discover musical details you've never heard before, even in your favorite high performance digital audio.
Low Diffraction Grille Design
The unique open architecture design of the acoustically inert LSi Series speaker grille never gets in the way of the sound.
Gold-Plated 5-Way Binding Post Connectors
Dual (bi-ampable) gold-plated 5-way professional binding post connectors give you maximum signal transfer and the most secure professional connections.
Floorstanding LSi Series models feature precisely engineered footing options, interchangable Non-Skid Leveling Feet or Carpet Spikes, for the ultimate stability on any type of floor. More stability equals more efficiency, less energy wasted, and more pronounced performance.
Perfectly Matched to LCi In-Wall/In-Ceiling Speakers
Designed with the same high performance components, including the Ring Radiator Tweeter and Aerated Polypropylene Drivers, the LCi Series of built-in loudspeakers can be used to complete or extend a traditional system of LSi Series loudspeakers. Add built-in surrounds to a home theater system, or add second-zone speakers to a music system. LCi Series built-in loudspeakers deliver the same incredibly warm and natural LSi sound in a speaker series that can virtually disappear into your decor.
Famous Polk Dependability & Durability
Like all of our products, the LSi Series uses only the best materials coupled with the most advanced manufacturing techniques on the planet. All Polk products must pass a battery of the most physically strenuous and exhaustive performance tests in the industry, including drop testing and extreme signal response testing. Polk Audio loudspeakers are proudly built to perform for a lifetime.
Polk Audio Customer Service: The Gold Standard
Call or email us and you'll be connected to real live human who knows just about everything there is to know about audio and performance electronics. From "how do I get started?" and "what should I buy?" to "how do I stop that hiss?" and "which tube needs replacing?" and everything in between, we know the answers you need to get back to enjoying your audio entertainment pronto. Just ask.
|Type||Dynamic Balance Ring Radiator (shielded)|
|Diameter||5 1/4" (13.34cm)|
|Type||Dynamic Balance with aerated polypropelyne cone, rubber surround and cast aluminum basket (shielded)|
|Type||Polymer composite cone with rubber surround (shielded)|
|Total Frequency Response||22Hz - 27kHz|
|Upper -3dB Limit||26 kHz|
|Lower -3dB Limit||30 Hz|
|Nominal Impedance||4 ohms|
|Mid-High Array Crossover||Driver 1: HPF at 150Hz 6dB/oct, LPF at 800Hz 12dB/oct.|
Driver 2: HPF at 150Hz 6dB/oct, LPF at 2.4kHz 12dB/oct.
Tweeter: HPF 2.4kHz 18dB/oct.
|Subwoofer Crossover||LPF at 150Hz 12dB/oct.|
|Recommended Amplifier Power||20 - 250 watts per channel|
|Inputs||Dual gold-plated 5-way binding posts for bi-amp/bi-wire hookup|
|Height||45 1/2" (115.57cm)|
|Width||8 5/8" (21.91cm)|
|Mid-High Array Enclosure Type||Vented with dual ARC ports|
|Subwoofer Enclosure Type||Vented via floor-coupled Power Port|
|Width||9 11/16" (24.61cm)|
|Depth||13 3/8" (33.97cm)|
|Product Weight (each)||66.00 pounds|
|Unit of Measure||each|
|Total Shipping Weight||80.00 pounds|
|Included Accessories||Carpet spikes with rubber protective feet|
|Speaker Warranty||5 years parts and labor (original purchaser)|
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.
View all Professional Reviews
onhometheater.com, February 2002
"It's an impressive system."
"...especially in my large room, the added solidity and seamless musicality of the LSi15s made music listening something special. Out of all the impressive components that make up this system [LSi15, LSiC, LSi7, PSW650] these floorstanders are something special."
"If you're looking to provide superlative musical performance and an impressive home-theater system for your immediate gratification and long-term pleasure, this one fits the bill. At $4000, this system [LSi15, LSiC, LSi7, PSW650] isn't inexpensive, but it's less than the price of a lot of high-end stereo pairs. For performance like the LSi system's, $4000 isn't just a bargain, it's a catch."
[ Open Review ]
The Absolute Sound, April/May, 2002
"[The Polk Audio LSi15 is] an amazing bargain...I am a little stunned..."
"The upper octaves are among the smoothest and most detailed at all levels of dynamics that I have heard; they certainly outperform most speakers costing more than twice as much...outstanding accuracy, detail and nuance..."
"...the new Polk LSi series provides exceptional value for money...[it is] a speaker any music-lover with a real-world budget should consider."
[ Open Review ]
The Inner Ear Report
Volume 14 #3 - 2002
"The LSi15s are a stunningly elegant and graceful adition to any listening room."
"In addition to musical strength, this system provided well resolved highs, transparent midrange and resolute bass."
"...rejoice! The LSi15s provide sonic delights akin to high-end systems that employ higher-end electronics... these new LSi15s are veritable gems with which to play back sound that offers loads of musicality at a moderate cost."
OnHiFi.com July 2002
"...the most attractive property this speaker possesses is its top-to-bottom coherence. But, as I listened to disc after disc through the LSi15, it began to dawn on me that I have seldom heard a flatter, less-colored top end."
"For acoustic music, the LSi15 is almost as perfect a speaker as I've heard under $3500."
"In its current LSi series of loudspeakers -- and most specifically in the LSi15 -- Polk is making the finest speakers it has ever manufactured. The LSi15 is an honest design that benefits from the solid engineering and construction that a huge company, such as Polk, can lavish on a project when it sets its mind to it.
The LSi15 sounds balanced and natural, and it's more accurate than many "exotic" speakers that cost a whole lot more. It is good looking and easy to drive. You can certainly spend a lot more on a speaker -- and I'd be the last to suggest that you couldn't buy a better-sounding loudspeaker -- but you'll have to search long and hard before you find one as good as the Polk LSi15 anywhere near its price."
[ Open Review ]
AF Digitale (Italy)
Excerpted from a review of a system comprised of LSi15, LSiC and LSi7
"The new Polk Audio LSi range is positioned as their 'top of their line.' Product goals were based on high quality throughout - sonic performance, aesthetics, build quality and reliability.
There's no question that Polk has met it's goals with these new products; the new tweeter which, almost magically, reproduces a wonderful blend of sweetness, richness and detail, the new, unique drivers reproduce the mids and lows with accurace and authority regardless if you are listening to music or a movie soundtrack. The cabinet, finished in high gloss black and wood is both handsome and robust and boasts intersting solutions for mounting the drivers and tweeter which are connected via high quality dual gold connectors.
It is rare to find such precision, even to the smallest detail in a loudspeaker at these price points and difficult to find any weak points.
The numbering system (Valutazione)
1. Aesthetics - 8 -- a classical line with high gloss and wood materials, the size is rather large (LSi15)
2. Connections - 8 -- Optimal quality dual input connectors allow bi-wiring / bi-amping
3. Construction - 9 -- Robust, attactive cabinetry with exclusive components - difficult to find any weak points
4. Positioning - 7 -- The side-firing LSi15 woofer makes it ideal for use in mid - larger size rooms
5. Audio Quality - 8 -- Superb new tweeter, almost a true subwoofer in the LSi15
6. Quality / Price - 8 -- The components, and overall quality are in line with the performance."
Audio Review (Italy)
"...from the standpoint of timbre, the impression of the LSi15 is remarkably natural and not noticeably different from the new Quad electrostatic...low frequency extension is remarkable...a very convincing performance which is not easily found in this category of product!"
AudioEnz (New Zealand)
"[T]hese speakers left me with only one impression: yummy...[T]he LSi15s sounded tremendous. The LSi9stook me by surprise; [they were] sharp as a pin, sonically brilliant."
Top Audio & Video Show, Milan Italy
Winner of "Top Audio Award" for best multi-channel loudspeaker for 2002, at Top Audio & Video Show, Milan Italy.
Reprinted by permission
The Absolute Sound
December 2002/January 2003
"...the Polk LSi15 gets this year's nod for a moderately priced speaker whose innovative ring tweeter and overall sound quality are a real breakthrough in affordable high-end products. Upper octaves and midrange are outstanding in comparison with many speakers costing more than twice as much, and the bass is very good...Remember the days when the high end was still affordable enough to be fun? Well, they are still here!"
Golden Ear Award winner 2002
"With acoustic music, the LSi15s had an enveloping sense of presence I've never heard from any speaker even approaching their price point. Their seamless integration of the entire musical spectrum is startlingly even-handed and natural. Feed 'em some hard-driving rock'n'roll or soul or jazz and they'll roar like a lion; feed 'em a soothing folk air and they'll purr like a kitten. And no matter the musical material, the LSi15s delivered its letter and spirit intact.
That's not just pretty good for a speaker under $2000/pair -- that's pretty good for a speaker.
But factor in price and it's darn near miraculous.
So, for living up to the highest ideals of the audiophile sensibility, the Polk LSi15s deserve to be one of onhifi.com's 2002 Products of the Year. And for doing it at such an eminently affordable price, they deserve to be huge."
[ Open Review ]
This product is considered a "Recent" or "Vintage" Polk Audio model. It is not a part of our current product lineup. It may still be available in some stores as a "close out" or "used" product. Information provided here about this product may not reflect current realities and does not imply availability. If you happen to have a question or concern about this product, contact our Customer Service Department at 1-800-377-7655 M-F 9am - 5:30pm EST. Chances are we remember it.
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