So the Logitech Z-2300 speakers I ordered off ebay arrived, and I plugged them in and played them. The sound came out fine, and I know the satellites work because I can hear them playing the songs properly, but my query resides in the sub. Not knowing much about audio, how much detail is the sub supposed to have. It sounds pretty vague, without my definition at all, although it is playing bass. Is that normal for these speakers? Or could they be damaged? How would i know for sure. I played a song without the satellites plugged in so the bass was only playing to get a better understanding of what sort of bass is plays. Like I said before it's very vague without much detail. What are the chances of a sub being damaged? The seller has a 100% reputation with about 100 people leaving feedback and sells largely computer products and accessories.