Its a cheap 5.1 setup. I had one T6060, which costs, and specs about same as the T6200. It was pure crap for the price. The rear speakers was just there to make unimaginable distorted sounds in movies and games. You can spot that by turning down the volume of all other channels in the sound properties, except the two on rear, and watch a 5.1 movie at high volume.
The only thing you will hear is ...krrr....prr.....grrr....durrr.......mmrrr etc from those speakers. They are the worse surround speakers ive seen, if they count as one. And its the same with newer ones too. Tried connecting headphones to the rear speaker outs in my sound card, and i could clearly hear the sounds for rear speakers. Also i tried swapping the front speakers and rear ones by swapping the pins, but it sounded the same. That means, it has the crappiest multi channel amplifier, and still it might sound almost normal if all channels are kept same volums, as the front 3 channels and much overpowered and sounds pretty decent, like a 1k 2.1 speaker.
X540 is much better, atleast it doesnt have such a crappy amplifier inside, and SQ too is much better than the Creative sub 5k 5.1. But dont expect too much from it, it just made it to the decent budget 5.1 category.