Summary: The best bookshelf speaker for surround sound or front or whatever position you would like to place it, sound is clear, low and hight effects are phenomena,l frequency is perfect ofcourse as long you have a realy good receiver, denon, yamaha, marants, onkyo...high ends ofcours you will feel the quality. Klipsch are the best on my opinion on the market.
Summary: Let me start by saying that these speakers look like $300 and sound like $1000. The bass quality is similar to the one found on other 5" or 6" speakers, its truly impressive. They don't go as deep (only 85hz) but it's miles better than the typical 3" satellite speaker! They can get loud if you want them to and the sensitivity on these helps underpowered amplifiers. The highs are crisp and natural, very vivid.
Summary: These a great speakers. I'm using them as the main right/left speakers w/ a powered sub for my home entertainment system. Of course I would prefer to have some huge tower Klipsch speakers but these are great if you are on a budget.