The missing link !! The comments comparing these to a PA system or musical instrument speaker are valid. I wouldn't use them as the primary speakers on any set-up, but when used with other speakers and situated properly they are virtually a necessity. Their companions in my large area are; JBL L100, HPM-100, Infinity, Bose, Design Acoustics and a thunderous Canton subwoofer. High efficiency design can be attenuated by positioning, separate volume control or using protection button (artificial load) on an external speaker selection box. These mint condition speakers were $25 in 2015 from a private party. The original foam woofer surrounds were in good shape but slightly tacky, possibly indicating early stage of decomposition. Coated them with paper thin layer of clear silicone for longevity.

I did the same with a set of SM-85's. I paid $65 for the pair: new. with good electronics, these have decent headroom and transparency. The Foam tweeter can get too airey if over driven or a poor amp is used. They make great little bookshelf speakers. They are well built with an attractive black cabinet. For the price I paid: 5 stars. Overall: 4 stars. At full MSRP I would go with Signets or Polk.

I bought these speakers along with a Infinity cc-2 to replace the ( in my opinion ) the worst speakers in the world accoustimass 5,7. The sm105's sound so much better when you pair them with Infinity's Bu-12 sub they sound fullrange and I got them for $240 a pair. I can now listen to classical music again and enjoy it!

About 2 months ago I purchased the infinity sm105 from crutchfield for $199.00a pair and have been impressed with them ever since I got them. They perform well with my 50x2 kenwood receiver. Their soundstaging is incredibly big for the speakers size. If someone knows of a better speaker for the price, be sure to tell me personnally on my e-mail address.

Value for the money...great sensitivity...able to really get loud!!!

missing some low end bass

Paid 249.00 for the pair at the AF Base BX...I'll be the first to admit you get what you pay for but with these speakers it would be extremely hard to do better for the price. I've owned Bose, Ar's, and a couple of other brands and would have to say out of all of them the SM's really cranked the best...currently using them in my home theater as my front R/L speakers (have a pair of smaller SM's for the surrounds)...superb sensitivity keeps my receiver from melting down during action movies...should also note that I have never had an Infinity product quit on me although I put them through hell almost daily

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I know a lot of audiophiles will cringe, but I LOVE the Infinity SM series, from the SM-65 to the monster SM-155. This speakers KICK A**! They have strong bass, GOBS of sensitivity, and are OK from the audiophile standpoint. No, they are not suitable for a discriminating listener obsessed with tubes and $1000/foot cables... but I like them! If you want good sound, low price tag, and like to occasionally "kick out the jams," then buy these speakers. No, the are not my "main" audio speakers, but they make a good second set for the other stereo. My review, based on value and all around performance, is:

These series really rocks if you want shear raw power. They are one of the most efficient speaker I have ever heard. I personally have SM155's in the front and SM125's in the rear. I run stereo not HT through the setup. It will blow you away. For anybody considering moving up in the SM series, I highly recommend it. I can tell the difference between the 125's and 155's let alone the smaller versions. All in all this is a great ground-thumping setup. You can't beat it for the price. Imaging could be a bit better but if you want to turn up the volume and throw a party...this is the setup.

I too have recently purchased the Infinity SM 105's, I also paired them with the Infinity Bu-2 subwoofer that I already had. I must say that I am happy with the performance of the speakers. Although I have been contemplating replacing them with the SM 155's and using the SM 105's for my surrounds when I go digital here in the next year or so. I have the SM Video for my center channel, I am also pleased with its performance.

I set up sm105 and the 3-way version in a home theatre application. The 105 seem smoother than the 3-way brother, the 3-ways being too forward. The output adjustmet controls helped somewhat. The 105 are highly efficient, well put together, and has excellent mid and highs. They can handle quite a bit of power and put out good volume from such a small cabinet. The only drawback to these 105 as well as from any lower priced infinity are the bass response. They sorely lack and need help from a sub. The cerwin vega dx5 have a much better bass ouput with a better overall tonal match garnering a best buy rating from a consumer mag. Still consider the sm105 as surround sats or for music that doesnt require much bass and you'll not be disappointed.

Ihave a pair of sm 125's and I can tell you that I would dare not try to compare any other speakers to these babies at any price! Just try to carry one in the box to it's final resting place is enough to strain any sizable person. Besides all that the sound is so natural and the seperation is so detailed it sounds as though the band is in your living room and you are the producer . I also have a pair of sm65's mated to a Cerwin Vega 10" passive sub and these little jewels flat get it on. Of course the JVC class "A" amplifier with the James Bond "007" thd spec doesn't hurt much itself. There is not a high enough rating to rate any of the "sm" series from Infinity. I cannot emagine the bass you can get from the sm 155's!