Well first of all, WOW! These are supposed to be the mid-range set of speakers by logitech, but to be honest, there is nothing mid-range about these. These sound absolutely amazing, really rich sound from the massive sub(it really is massive)and perfect midrange and highs from the sattelites. The build quality is very good, the system is very heavy with all the magnets involved in producing such good quality sound. The control centre has a very cool blue light on it and is uber functional with so many digital inputs, headphone jack, volume control etc... If you are umming and arring about bying this system i say go for it, i spent a few weeks convincing myseklf to buy them and i havent felt a twinge of regret!!