Summary: My old Logitech Z-560 developed a short in it creating nasty crackling noises over one channel. The Z560 was a rare beast, a $140 400 watt 4.1 monster that Logitech built to really high standards to create a strong foot forward into the PC speaker market.
Summary: Unable to find a satisfied balance of the bass & treble for this speaker. I've tried all the way, different combinations, but still failed to hear the sense I want. What I can conclude here now, is this speaker produces bad quality of sound, pretty much unbalanced, some frequences are overstated,...
Summary: The sound quality on these speakers is not the greatest. Also, the touch-sensitive controls did not function properly (or at all) with my computer. I called Logitech customer support (which is not open 24/7) a couple times when I owned these speakers and they were not very helpful at all.
Summary: Having purchased these a month ago, I have come to regret it. Mind you the price on Amazon is $50 to $60 cheaper than the stores, the sound quality is choppy which may entail a defect. In addition, the ease of use of the controls is far from what you should expect of its touch sensitive platform.
Summary: I'm disappointed. The quality of the box and packaging is tremendous. The speakers are heavy, look high quality and have great aesthetics. The touch features work well, and the software installation was easy.