Pros: Superb bass, nice design
Cons: Easy to get distorted, weird tweeter placement
VS4621 is quite a good product overall, it has a really powerful bass, some called it bass monster, although the sound is dominated with bass, i still find the other sectors not bad at all.
The biggest problem with VS4621 is that it is so easily get distorted and the only way to solve it is to play it close to the maximum volume, of course by lowering your computer volume at first, then play it normally, done.
Apart from it's weird side subwoofer and tweeter placement, this speaker is worth having especially if you are a gamer, it makes a nice noise on FPS and Racing games.