I was looking to replace my old (and very cheap) 2.1 system, It was a sad little thing with a 2 inch sub and 8 watts but it served me well for 3 whole years. After looking around I decided that I was going to spend a bit more on a more powerful system instead of getting another weak one. Out of all the 2.1 systems I found this one is by far the best, the satellites provide crisp clear sounds unlike anything I've heard, I can hear leaves rustling, the crunch of gravel and glass under the boots of characters and the soft whispers of the wind. The sub woofer is my favorite part about this system though, With 40 watts pushing a 5 inch sub plus the driver the depth of the bass is amazing as is the volume. I can make cups and plates in the kitchen and tools in my garage rattle with this thing. I can hear and feel it outside even up to 20 feet from my house. The only problem I've had with the system is that the sub vibrates itself out of my desk but that was easily solved with a bit of tape. I wish Logitech would add another input so I could hook another sub to it, I can only imagine how great it would be with 80 watts and two of these sub+driver boxes.
Buy this you wont regret it