These speakers look nice, but that's about all they have going for them. The 50W peak power is a misleading specification. Their RMS power, or "average" power is much, much lower (it is not mentioned anywhere in the manual). I have a set of 2.1 Boston Acoustics speakers with 7W RMS on the sub and 1.7W RMS on each of the satellites that are MUCH louder than these.
The two satellite speakers in this set aren't that bad. They produce a loud, but average sound (reasonable for the price point). However the subwoofer is terrible. It simply doesn't pull enough power. They might as well have not even included it.
There is a simple explanation for this. The power supply inside the subwoofer only outputs 13W (that's for the entire system). There is no external power brick.
Bottom line: if you're looking for an affordable set of computer speakers with a minor bass response, these are fine. But if you want to listen to music, or care about the low end of your sound at all, stay away.