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.
14 reviews with an average of 4.5Write your own review
by John, December 5, 200512 out of 12 people found this review helpful.
Excellent imaging and detailed highs without the grainy/harsh sound of other tweeter designs. I played around with powering these speakers with different power amps (Adcoms, Denons, and finally an EL34 based vacuum tube power amp. The speakers sound fantastic with the vacuum tube amp. Brought home other speakers from the store to compare against the LSi7s (Event 20/20s, Various JBLs and a Klipsch model). Each model had its strengths and weaknesses but overall, the LSi7s beat the other models in mids/highs. Cabinet construction is very good/excellent. I could comment that the low end response of the LSi7s leaves something to be desired but then again, these are bookshelf speakers with a 5.25Ē low/mid driver. With that in mind, I would have to say that these speakers have very good low end. For my listening preference I have added a subwoofer. Other than that, I notice a peak/bump in the mid bass region thatís easily solved by playing around with speaker placement/positioning. Overall, Iím pretty amazed by these speakers and very satisfied with my purchase.
by Mike Clegg, January 7, 20087 out of 8 people found this review helpful.
Fantastic speakers for surround applications and the cherry surface is beautiful. High quality build design.
Light on bass, but that's not the reason you buy them for.
I was looking for speakers for my surround system. Looking for the best sounding and best looking speaker for the buck (i.e. No 1 criteria). Pretty much came down to Polk LSI series vs. B&W705. The sales guy I talked to at Fryís (selling the Polkís) actually recommended the B&Ws because of his experience with them at his parentís house. Thus, I went and heard them and they are a fine speaker, but they did not meet my No1 criteria as they were way more expensive and not as nice looking at the cherry Polks. So I bought a pair of LSi 9ís for the front, LSiC for the center channel, and the LSi 7ís for the rear/sides. Completing my 5.1 surround system is a Velodyne 1200R subwoofer, Outlaw 990 signal processor, and three GFA 545II Adcom amps (rated 150 watts/channel into 4 ohms) I had hanging around the house. Although the 9ís are worth the extra money for 2 channel applications, the 7ís serve particularly well as rear/side channels in a 5.1 or 7.1 configuration. Originally, I was feeding the Polkís with a 5 channel Sony (100 watt/channel) receiver and the sound was very muddled. With the 9ís and probably with the 7ís, a high quality amp is probably what you need to hear the best out of these puppies. Replacing with the Adcom amps made all the difference in the world. Do you need a subwoofer with this system? Well yes, if you really want a true surround experience, but the 9ís are pretty darn effective in handling low bass. Would not recommened using the 7's for this application as I am sure you would be left wanting for more bass. The speakers are beautiful (I had to build custom shelves for the 9ís because of their depth) and they fit very nice in a family/living room venue. For space reasons, I used the 7ís attached hooks for mounting, and I really donít think this compromised the sound all that much. When I really just want just to listen to hi fidelity recordings, I rely on my tube electronics and Dahlquist DQ-10ís speakers. However, for all other applications (SACD 5.1 and DVD 5.1) the Polkís are hard to beat and I highly recommend them.
by Ashok, December 24, 20054 out of 5 people found this review helpful.
Superb full-range clean sound from a small package. For my stereo listening habits, these do a fine job. The subwoofer, also got based on some other previously posted reviews, is not necessary and is being taken out. Very fine finish and appearance to boot. Good job, Polk.
by Joey, July 4, 20043 out of 3 people found this review helpful.
Imaging is A+, Soundstage width is A-, Soundstage depth is A, Highs are A+, Midrange is A-/B+, Bass extension/quality A- for the size, Construction quality A.
None at this price bracket... although I would like more veneer variety.
These are great great speakers. I have compared them to various speakers in DIRECT AB comparison both at the hifi shop and at home... and I found to prefer these LSI7 over much more expensive speakers. I posted a full and thorough review/comparo on the hometheaterforum board... feel free to read it to get a better idea of how this LSI7 stacks up against the competition. Overall, you cannot beat these for the price! http://www.hometheaterforum.com/htforum/showthread.php?s=&threadid=203484 GREAT JOB ON THESE POLK!!!
by Dale Martin, October 5, 20043 out of 3 people found this review helpful.
Clarity, design, and most of all, tremendous sound. Better speakers, than the over-priced B&W's
I have been buying Polk speakers for years, and have never been disappointed, with any of their products. The Lsi 7's blow the competition out of the water. Superb quality,design,and sound. I think these will be the last speakers I will ever buy, the hunt is over!
by Sean Patton, February 22, 20022 out of 5 people found this review helpful.
Very well constucted with sound that will blow you away. Yet it is small enough to be "Wife" friendly. Great speaker for any new audiophile.
NONE. At this price range you will not find a better bookshelf speaker.
All I have to say is WOW! I stumbled on to these a few weeks ago at my local audio store. I was seriously looking at the LSi9's as my main speakers for my new HT system and asked to compare them with a lower end model. So the guy breaks the LSi7's out of the box and informs me that they just got these in and he had yet to listen to them. We hooked them up and both of us were amazed at how well they sounded. We played some James Bond movies, then stuck in a few CD's ranging from rock/metal to pop to opera...these baby's did not miss a beat. When comparing them to the LSi9's we noticed that the 9's were a tad bit clearer. Maybe it was because of the extra 5 1/4 speaker, but I decided to go with the 7's. Money was never really an option, I just thought I was getting a great speaker at a very good price. I got them for 700$, while the 9's were running 900$. One of the best speakers on the market today. Polk has developed a really great line of new speakers.
by edmond, June 18, 20062 out of 4 people found this review helpful.
Suitable for any kind of music, particularly soft music and vocals.
Its bass is strong and deep but not the kind of punchy. A powerful amplifier is required.
Just got a pair for stereo music. In the first impression, its highs and mids are much better than its bass. But, when I mounted the speakers on wall. its bass become much deeper and stronger. Excellent performace.
by erwin lowe, May 2, 20031 out of 3 people found this review helpful.
clarity and focus, build quality too
not very deep bass due to its small box
surprising quality from polk, i must say. the design is neat and the cabinet is well-built. the sound has good clarity and detail and sounds rather coherent as well. it sounded better than some highly-reviewed british speakers i were looking at which surprised me. they may not be exactly cheap but i rank them to be among the very best at this price range
by chip dayton, April 21, 20041 out of 4 people found this review helpful.
power for their size
seem to go too trebly at high volume, must ajust treble balance to as much as minus 4 or 6 for some music, no big deal
Upgraded from R20's so I could really crank rock DVD's. They do the job I wanted and as the other reviewer mentioned they are "wife friendly". This is important! This is not a joke!
by Skisoverboards, June 23, 20041 out of 2 people found this review helpful.
VOCALS! These speakers achieve the softest most realistic vocals of any in the price bracket
HEAVY very heavy.
I went to a store to listen to the new LSi line. I listened to the 9s and the 7s, between the two all I noticed was a small clearity diff and I would imagine the 9s perform better in a big rom, but we were in a small one, and I have an apartment. I ultimately decided to get the 7s. I was also surprised to find the store I went to was closing out the line for no particular reason, and they were $50!!!!!!!!!!!!!!!!!!! SCORE.
by RAY, March 21, 20020 out of 13 people found this review helpful.
THOUGHT THEY SOUNDED GREAT THEN i HEARD THE NEW B&W DM601S3\'S . SORRY GUYS THE B&W\'S JUST KICK ASS.AND i PAID A LOT LESS
by Michael McKay, November 10, 20040 out of 3 people found this review helpful.
Great imaging, very clear mid-range, detailed treble without being too bright
Mid-bass peak (especially noticable when wall mounted), needs good electronics
I bought a factory refurbished set (for an excellent price), and started comparing them in my 2-channel music system for a week or so (assuming they were already broken in). I was quite impressed with the overall sound, especially the imaging. I was a bit disappointed in the mid-bass, which seemed slightly emphasized and a bit congested. Compared to my longstanding reference speakers (ADS 810), I preferred the LSi7 from midrange on up. No real surprise that the ADS bass went deeper (twin 8Ē woofers), but my 25-year-old speakers also had better bass transients and provided more accurate details in the mid-bass (especially with complex recordings Ė say Yelloís Goldrush). Later I toyed with a subwoofer, but found that event with a 120Hz cross-over, I could not get the Lsi7 to sound like I wanted. I wall mounted them in the master bedroom, but they lost a bit of the involving quality I had enjoyed in my main music system. I attribute this mostly to the old receiver Iím using (late-70ís JVC). I noticed a more prominent mid-bass peak, but a couple detents at 250Hz with the JVCí graphic EQ mostly tames this. Still a very nice speaker for the money, but the current installation does not allow it to shine. Finally, I have been shopping for new LRC speakers for my home theater. I donít think the Lsi7 will cut it there, but I still need to do some extended listening to the Lsi9. Right now Iím leaning towards the Klipsch RB-75 or NHT M5 Ė both of which seem to be a bit more ďliveĒ to me (the M5 also images better).
by Benny, May 18, 20050 out of 2 people found this review helpful.
Imaging, dynamic quality, flatness, ie: uncolored, and amazing build quality... beautiful in every aspect. Looks alone warrant respect, and the sound is there as well.
MSRP is too high considering that the Lsi9's and floorstanding versions are not terribly much more. 4 ohm Nominal impedance does not bode well at all with cheaper components especially recievers which 90% of the world uses, not separates. None the less my Onkyo 105 watts per channel high-current reciever has made these speakers sing effortlessly so far...
These speakers have really good definition and soundstage. I have owned some of the polk RT series: RT35's, RT600's, and the RT800's. I traded my RT800's for these Lsi7's with a friend. The sound of these Lsi7's is impressive, yet somewhat different characteristics reveal themselves if you are only used to the older "cheaper" (in price) series of polk. The sound is still very true to the o.g. recording and uncolored by my standards. On my Onkyo reciever, "TXDS-777," I am very pleased with the sound output with ZERO bass or treble adjustments. These speakers preform admirably simply being amplified without "tweaking," which I believe is a true testament to quality sound. The paramount question in my mind is: are these worth $900.00 for the pair? No, not for me; when the monitor series offers pleasing sound that is ALMOST as satisfying. Summary: these speakers are incredible in sound , build quality, and performance. p.s. never heard better bookshelf speakers in my 24 yr old life.
by Jamite, October 1, 20050 out of 3 people found this review helpful.
Very detailed with silky smooth highs.
Not exactly easy to power speakers. These really need decent power to even come close to what they are cabable of. At first I was powering them off a low end receiver and was a little dissapointed but once I hooked up my NAD to them they opened up nicely.
Great speakers. MSRP is a little high but there are ways around that... for the price I got mine I can't think of a better speaker (won't mention what I got them for but it was a crazy good deal). Careful before buying these; once you get these the ineviatble upgrading bug will set in and you will and your wallet be hooked to audio. The talked about mid-bass hump can be fixed through placement and isn't really a big problem. If you enjoy quality sound these should work well but if you are looking for something to shake your house you might consider something along the lines of Klipsh =)
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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