I purchased a used set of these on ebay about three months ago and have regretted the decision. Yes, the system hisses constantly, even with the volume turned all the way down. while the hissing is barely noticible when you are using the system, it is really annoying in any quiet moments.Asside from that, these speakers are not well suited for music. The mid range frequency responce is almost non-existent. It really kills the sound of great recordings (like the Sgt. Pepper's album by the Beatles). Additionally, the bass responce from the sub is very inarticulate.If you can live with the constant hissing (and who can?) and you just want a speaker system for use with games, I would still recomend going with something better. I don't think that these are worth much more than you would pay for a cheap 2.0 speaker set.