Lively sound
I wanted to replace my 2-1 Altec Lansing FX6021 (€155 in 2007, so same price range) because of intermittent downtime. Not an audiophile, I'm disappointed by the sound of the Logitech. It gives me the impression that the sound of the satellites is muffled in certain frequencies, that they are much more directional (I really have the feeling of having the 2 satellites in front of me), that they give a much less immersive feeling.
Voices are less pleasant. The Logitech satellites are supposed to be more powerful, but when I turn up the volume (e.g. to listen from my bed) I find the sound even less pleasant.
Perhaps it was also a question of habit? I've just spent a month with the Logitech, have just done a test alternating between the two and prefer the Altec Lansing.