Summary: Incredible detail at a great price. You get great sound with relatively low power (I'm sending 5-10 W and it's enough to comfortably fill a ~1000 sq. ft. area with great sound.) For my needs, I could not justify going with the Reference series (or the newer "II"s). Even the F-30s were overkill. So if you're putting together a simple easy listening system, this guys are the way to go.
Summary: Amazing quality and sound. I've used 30 year old Sony floor speakers for years. I plugged these in and Wow! What a delight. Makes my cheap surround satellites sound like crud. The technology involved in these are outstanding. These are a must have if you long for quality sound for a great price. P.S.
Summary: I used these for a wedding reception 2 speakers for a large hall and they sounded great no issues. I have a Yamaha receiver 100watts per channel (10yrs old) and it shut down a 2-3 times..I think it was getting hot after playing at high volumes.
Summary: I've been a Klipsch fan since back in the 70s when our band's sound man had stacks of LaScalas. He actually knew Paul Klipsch! I bought a pair of Hereseys from him that he'd used for our stage monitors. That was a long time ago, and I wore them out. Finally, I'm retired and have been setting up the home theater I've always wanted, but on a limited budget. These F-20s replaced a pair of Sony SSF-5000s which I'm now using for the rear surround.
Summary: AMAZING, Can hear all ranges of sound. I've been a big Klipsch fan forever and when I saw these for $129 i knew it was a no brainer and the speakers make a huge difference. Skip Bose get these you will be much happier in long run. Bose still uses paper woofer cones which over time deteriorate and lose there quality.
Summary: These are very nice sounding speakers. I recommend that you listen to them Without a sub for a week so you can hear what they sound like, then if you need a sub you'll know how to adjust it. I say that because these speakers do have a great "tone" and you don't want to ruin it by "booming" them out with a sub. These sound great at Low Volume and great at High Volume also. The sound is Rich and Dynamic.