I had read product tests that placed him as the best in its class but also the most expensive ... I was afraid to be disappointed, expecting a real difference with the Creative T3 that I had and that I was not hurt. In the end, I am absolutely not disappointed! These are incredible Bose. Spatialization is excellent. We rediscover pieces means each instrument is clean. The subwoofer is efficient and does not saturate as fast as other systems. However, they do not tolerate the poor quality mp3, bringing out all the flaws of the pieces. Power level, it sends strong, although a strong distortion appears at max volume, it does not matter because it is very good at 90% of the beach and ample power. In the movies, it's also good. The sound shifts between special effects and dialogues are well managed. This remains audible and comfortable for every situation. For those who like to have a clean sound and audio files that have good quality, I recommend this system.