The Logitech LS21 2.1 Speakers I run now for half a year on my onboard sound card and have to say that I got a very mixed impression of it. The processing itself is quite ok, but also not high quality. So, the two small speakers and the subwoofer only plastic made from pressboard. Other materials would indeed significantly improve the sound quality, but in this price range also not that bad. The subwoofer comes, although the bass is set to 100%, very dull and weak over, so that even my two-way bookshelf speakers from Heco at slightly adjusted Bass have more power. In addition, could well be a controller for remote control. The sound is not bad yet. But now to my main criticism: If more than a few minutes no audio signals are transmitted, the upper speakers begin terrible to rustle. Therefore, it is also not possible to me that all the time to leave the pit. Currently also the left speaker has frequent dropouts. Conclusion: As I could already read in other reviews, this problem also occurs with others. However, the majority of speakers is flawlessly. But because of my personal experience I can therefore give no recommendation to buy, but only say it's a gamble whether you get a good product.
