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
Single-Driver Bookshelf Loudspeaker
One Sweet-Sounding Loudspeaker
"It is rare to find such precision, even to the smallest detail, in a loudspeaker at these price points."
- AF DIGITALE (Italy) 11/02
"Midsized speakers don't get much better than the LSi7... Compared to their real competition, which lies in the high end, Polk's LSi7 speakers...are excellent buys."
- Mark Fleishman, Audio Video Interiors Magazine 10/02
For an almost compact high performance loudspeaker, the single-driver LSi7 succeeds in delivering superior linearity, definition and imaging, as well as bass response that's rich, deep and satisfying. It's highly accurate and intensely musical, with a large soundstage that never sacrifices pinpoint localization.
Use the LSi7 as a front stage or even surround loudspeaker in an LSi home theater system. Use the heavy-duty keyhole slot hanger built into the rear-firing PowerPort Bass Vent to mount the LSi7 on walls, for even more high performance convenience.
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||45Hz - 27kHz|
|Upper -3dB Limit||26 kHz|
|Lower -3dB Limit||53 Hz|
|Nominal Impedance||4 ohms|
|Recommended Amplifier Power||20 -150 watts per channel|
|Inputs||Dual 5-way binding posts for bi-amp/bi-wire|
|Height||13 5/8" (34.61cm)|
|Width||8 5/8" (21.91cm)|
|Depth||10 1/4" (26.04cm)|
|Mounting Options||Bookshelf, stand, on-wall with built-in keyhole slot|
|Product Weight (each)||21.00 pounds|
|Unit of Measure||pair|
|Total Shipping Weight||24.00 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
GoodSound!.com, July 2002
"[LSi7s] offer performance that can better that of many costing more than $1000."
"[The] cabinet is crafted with jewel-like precision. It's smaller than many speakers at this price, but it's built to a high standard...I haven't seen a more solidly constructed cabinet at anywhere near the LSi7's price."
"...it's a small, exquisite speaker that can play with exacting precision. It's designed for listeners who value refinement and detail over sheer output capability...The first thing I noticed about this speaker was its clear and defined midrange. The LSi7 is smooooth, but, at the same time, marvelously textured and detailed..."
"The LSi7 is a highly resolving minimonitor that performs up to the standard of far more expensive speakers...[and] represents a solid value."
[ Open Review ]
Quebec Audio Video
"It is rare for personalities in the audio/video realm to implicate themselves to the point of appearing in ads for their products. Matt Polk is one of these, in which he pushes the effort up to objectively inform consumers about certain qualities every acoustic speaker should possess. I call upon this critical spirit he invites us to join and propose the results of my application of one of their latest model, the LSi7."
"Here are the results I arrived at with the LSi7: a stunning result in the bass for a 13cm, a mid range lightly reserved but with precise timbre, and a natural and sweet (soft) high. These speakers are open and transparent, as well as capable of impact. This might explain that I had a sound stage of medium dimensions, without experiencing the phenomenon such as feeling the air between the musicians during a recording. But it also explains the massive and substantial sonority.
Finally the LSI7 are speakers that are very well conceived and realized with an evident concern for controlling the parasitic resonance. Their strong woodwork and their ingenuous ports minimize the frequent problem of midrange coloration. The transducers of the LSi7s are exemplary in this type of configuration and offer dynamic sonority with substance. Once broken in, these are the sort of speakers that have always made me want to listen more often to music. A little more expensive than the average of the small 2 ways, they are largely worth this little supplement."
(Our apologies to the author for our clumsy French to English translation)
"In the areas of detail resolution, high-frequency performance, soundstaging, and wide-range dynamics, I doubt there's another affordable speaker that can approach the overall performance of the Polk LSi7."
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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