Summary: I have had these speakers since November 2012. It is now July 2013 and the right speaker is now emitting only a low static sound and nothing else. Sound from only one speaker is not enjoyable. Another major flaw, when plugging in headphones into the jack, you cannot alter the volume with the dial. Have to change volume with the volume mixer in windows. I will shell out more money for something more appropriate. Good luck with these.
Summary: I got this system for my mom and dad for christmas. It seemed to be of decent quality. However my main dissapointment is that the subwoofer volume and the sattelite speaker volume only turn up and down together. In other words if the subwoofer bass is a little too loud (or not enough) you can't separately control the volume. Even worse than that, when the sattelite speakers are linked directly to your device (without the sub) it will not play by themselves.
Summary: Hey Logitech! What happened to user-friendly? I build PCs for a living and I'm sorely disappointed with customer feedback... Since Logitech no longer makes the best 2.1 speaker system in the price range (X230), I'm unfortunately buying another brand. Don't get me wrong though, they're OK speakers, however the X230's have a separate Subwoofer Volume and these (Z313's) do not. Which makes for a muddled sound.
Summary: I've owned this speaker system for almost a year now, and for basic day to day listening its okay as long as you dont get the volume too high. when you start listening to music at higher volumes the highs become extremely shrill and almost painful. with a bit of tweaking on my pc's equalizer they can sound a little better but not by much.
Summary: Had them about a year, then there started to be loud crackling whenever the volume was adjusted. Got worse and worse, then sound started cutting in and out. Now the speakers are useless, due to faulty wiring on the control pod. If I twist the wires a bit going into the control pod I might can get clear sound for a few seconds. Other than that it is no sound or highly distorted.