Hi there,the Polk lsi9 is a great bookshelf speaker. Great sound for the size. Looks even better. I have the grey colour . Great overall sound and imaging. Bass is deep enough for most,but subwoofer can complement it in case you are a bass lover and need more. Heavy and well made.

No issues with me

Love this speaker clear and true sound. Monster bookshelf speaker. The main speakers I use in my main listening room are b&w cm10 s2. To compare

The only weekness is not any sound issue. Its just super power hungry you need to use a powerful amp to drive these speakers.

Here's how I got this gem of a speaker to maximum performance:

These need to be on mass loaded stands (20"-24") and well away from walls and corners. Even there I found the bass a little bit too ripe. So, I completely plugged the rear port with foam rubber but that over damped the bass response. Solution: tune it by ear. I now have the rear port about 3/4 stuffed. It's all room and taste dependent.

Next, and most important, these speakers need to be bi-wired. They really open up. They will not perform to their potential in a single wire configuration. They bloom when you bi-wire.

Lastly, use at least 100w/ch solid state amp. Enjoy!

Needs a powerful amp (would recommend at least 200 watts @ 4 ohms) to bring out their true beauty. I discovered the meaning of the word "sound stage" with these speakers. The bass is just too good to be true , all my friends think there is a sub woofer playing also & search for it & are amazed to find that all that base is without a sub.
The clarity is the best I've heard so far.

I've heard that these don't sound so good with a less powerful amp so throw that into the equation when you think about buying them.

the lsi9 is a great speaker that hooked to rotel amp. RA1070c (100w per ch)i think that the polk lsi9 better then the b&w and better then a lots of very expensive bookshelves speakers. with the polk lsi9 i dont need a subwoofer at all. the bass of the polk lsi9 is very warm and punchy. iam very pleased with the lsi9.they are better then the polk rti a7 that i also have.the polk lsi9 prove that a great speaker can be not only great looking'the lsi9 sounds great with all kind of music.iam sorry about my bad english but iam not sorry that i have a great speakers(cherry finish)from all points of view.
thank you.

Just about everything.
Very warm, clear, and not to be redundant solid bass.

The black lacquer finish keeps me busy with the duster.
Polk Audio badging may detour some buyers.

I'm using a Marantz PM7001 Stereo Integrated Amplifier. SO yes, that means I am running a system that is bang for your buck. But thats OK. I'm rivaling a neighbor with a Marsh Tube Hybrid Preamp and Marsh A200s Amplifier, and he drones on and on about my setup. I told him he could spend the night in my living room sometime. He grinned.

Customer Service

AWESOME!!! It's like the guy lives across the street or something!

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Soliliquy 6.2

Pack a large punch in a small package.
Work great with my new Yamaha Rx-V2700.

none.

Great speaker for the money. Little larger than most bookshelf speakers so had to put on a bigger lower shelf. They look beautiful in the cherry finish.

Customer Service

Great service from www.acousticsounddesign.com .

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Infinity Bookshelf - not a fair comparision

Excellent sounding bookshelf speakers. Clean sound throughout the entire frequency. Lots of Bass for there size, you still need a Sub if you want the ground to shake but for music they are more than enough to make you think twice. The highs are smooth and the Mids are just right. I dont see myself ever giving them up.

4ohm speakers, you must have seperate amplifiers if you want these speakers to show you what they got.
A bit long for a bookshelf.
These are not realy weaknesses but something you should keep in mind.

Great Speakers, they pack alot of punch for there size. Can outperform expensive speakers costing much more.

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Paradigm Reference
I heard many top speakers costing thousands and the LSI9 can give them all a run for the money

heavy construction, great overall sound, can be compared to speakers costing much more, Not much to add that has not already been said about these excellent speakers

can be a bit long for a bookshelf but thats not a big problem, 4ohm speaker needs a powerful amplifier, cant realy think of any weaknesses

Nice wood, Deep bass for such a speaker, smooth high's, Loud and clean, One of the best sounding bookshelf speaker at any price. The bass is more than enough, you will need a sub for ultra low frequencies. Im considering a sub for watching blockbuster movies but Im in no rush with what I have.

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Polk Lsi-7
Paradigm Studio 20 / 60 / 80
Heard many speakers at retail stores...too many to list

Loud and clean, great overall sound, can be compared to speakers costing much more. Not much to add that has not already been said. One of the best sounding bookshelf speakers I ever heard at any price.

Cabinet can be a bit long for a bookshelf but thats hardly a problem, 4ohm speaker need a good amplifier. I realy can't think of any weaknesses

Nice wood, Clean sound, Deep Bass for such a speaker, sweet smooth highs,
heavy construction

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Paradigm Studio 20
Polk Lsi-7
I heard many speakers at retail stores...too many to list