Hmmm. It sounds like a typical multimedia system. It sounds like a combination of bose and other stuff. They use the "direct/reflected" sound thing, as well as deliberate addition of harmonic distortion to make it sound like the system is producing lower bass than it actually is. Personally, I'd recommend that you go with the Logitech Z5500 System. It accepts a digital input like the Sphere system, but also has much more power on tap and is also cheaper. You can check out the Logitech system
here.
Edit: However, after checking out that review link, maybe it would be a good idea. If you could, I'd say try to find a way that you can audition the speakers before you buy 'em. Happy hunting!