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
Dual Driver Bookshelf Loudspeaker
The Bookshelf Speaker for Serious Listeners
The bookshelf-capable loudspeaker by which all others will be measured. Dual drivers and the Ring Radiator Tweeter reveal pinpoint details, realistic imaging and projection, a wide soundstage with surprisingly deep and wide frequency response. Music is airey and uncolored; spacious. It's clear that the LSi9 is Polk Audio's ultimate bookshelf statement.
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.
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)|
|Mid / Woofer|
|Diameter||5 1/4" (13.34cm)|
|Type||Dynamic Balance with aerated polypropylene cone, cast basket and rubber surround (shielded)|
|Total Frequency Response||38Hz - 27kHz|
|Upper -3dB Limit||26 kHz|
|Lower -3dB Limit||50 Hz|
|Nominal Impedance||4 ohms|
|Recommended Amplifier Power||20 - 200 watts per channel|
|Inputs||Dual gold plated 5-way binding posts for bi-amp/bi-wire hookup|
|Height||14 7/8" (37.78cm)|
|Width||8 5/8" (21.91cm)|
|Depth||15 1/4" (38.73cm)|
|Mounting Options||Bookshelf, stand|
|Product Weight (each)||33.00 pounds|
|Unit of Measure||pair|
|Total Shipping Weight||36.00 pounds|
|Included Accessories||Rubber bumper pads|
|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
SoundStage.com, April 2002
"The LSi9 is capable of wallop on the bottom end that is very impressive."
"The midrange has oomph that is very impressive too. Vocals rocket out of this speaker, but without being too forward. There is fullness along with wonderful smoothness."
"The center image is amazingly solid, and voices have absolutely realistic size, as they should but often don't. The width and depth of stage that these speakers create are outstanding too."
"...the Polk speaker sounds more refined in the treble. It's smooth, clear, extended, and without a hint of grain or edge."
"They've hit the bull's-eye with the LSi9. Not only is it an exceedingly refined, first-class performer, it has specific sonic qualities that make it stand out in its price class."
"All this adds up to a level of performance that is ear-opening -- and at just a smidgen over $1000. I'm sure even big-speaker lovers are going to find a lot to like in this little gem."
[ Open Review ]
Stereophile Guide to Home Theater
"Sounding better than an inexpensive speaker has any right to, the Polk LSi9 is a pleasant find. Low to unnoticeable levels of compression, a sweetly extended treble, and a warm midrange (once you get above that minimum-volume threshold) make the LSi9 a natural for music or movies."
"The competition is tough in the $2000/pair category, but few buffalo roam where the LSi9 play. The Polk LSi9 is clearly a big winner."
[ Open Review ]
Area DVD.com (Germany)
"A perfect introduction for Polk Audio: The LSi9 amazes through exceptional power handling, excellent bass response and brilliant dynamic range values."
First class bass performance
Exceptional Dynamic Range with both Music and Films
Excellent accuracy and tightness
Very high technical quality and workmanship
Very fair price
For the price, unquestionably exceptional quality and performace - no contras"
"...first class workmanship and attention to detail, no corner cutting, every detail is exact; for example the brilliant cabinet workmanship and finishing as well as the input terminals which establish a 'Reference' level."
"...the bass response and tightness is especially impressive; at the point where other speakers reach their limits, the LSi9 is able, effortlessly, to put out that 'last little bit'."
"...the Polk LSi9 is undoubtedly one of the best bookshelf loudspeaker systems known to us."
[ Open Review ]
Lyd & Bild (Norway)>/i>
(translated from the original Norwegian text)
"No other bookshelf speakers combines punch and refinement such as these 'mini-bulldozers' from American Polk Audio..."
"...if you had been at a local Hi-Fi shop and listened to these speakers, you would probably be wondering where the subwoofer was. But there is no subwoofer, only the Polk LSi9."
"The tweeter sounds extremely good! It has a resolution so fine, that even the tiniest detail sounds crystal clear."
"B&W 705 matches LSi9 when it comes to tweeter and midbass, but are no way near when it comes to LSi9's bass/muscles."
"Try them, if you dare!"
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.
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.