Summary: First of all these speakers are beautiful, the fit and finish are first rate IMO and just a joy to behold. But it doesn't stop there. With the right equipment and robust amplification system their sound is much larger and than the speakers themselves. It's a very smooth, full and non fatiguing sound that envelopes you in an immense soundstage, and delights with the manner in which it handles all manner of music.
Summary: 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.
Summary: This is an exceptional speaker. You will hardly believe you are listening to a bookshelf speaker. The bass is deep and solid. The mids and highs are the most lifelike I have heard in any speaker up to 5000.00. The ring tweeters are silky smooth and accurate to say the least. I am running 300W to these and they sing. Imaging is sharp and soundstage is wide and accurate. There is no way you can buy a better speaker with a budget in mind.
Summary: I purchase a pair of LSi9 bookself speakers to complete my surround sound system. A pair of LSi25 floorstanding speaker, a LSiC center channel, 2 polk subs and a pair of LS50 vintage speaker which I still love. The LSi9s are brand new and require a break in period. If they sound as good as the other LS series, I will be 100% satified. With the new upgradeing of AVR receivers changing from 5.1 to 9.1 surround, I am having a little problem decideing placement.
Summary: While I don't own these speakers. I can state that the Mid woofer and tweeter are very accurate and transparent. I own the LSI 25 and LSI 15 which has the same drivers. Just wanted to point out that mgbdeader was incorrect at stating that they require twice the power to run them. Since the Ohms are 4 ohms and not 8 ohms, it takes less power to make them sound as loud.
Summary: Perfect size and sound for a 12x15 music room. Works perfectly with my Harmon Kardon 3490 receiver and sony SACD player. Extreamly well built with the weight to prove it. At list price these speakers are a bargain considering their sound reproduction. Buy them for less and enjoy an amazing bargain. The proper 4ohm amp is required. These speakers can also be bi-amped.