After I read the good reviews, we got ourselves this 2.1 Soundsystemchen. The boxes should replace my Philips, who only 37 watts RMS. Unfortunately, this was an air number. Audible the inner workings of MS-Tech Boxes is not very powerful. In comparison, the treble sound tinny and instruments partly washed out, the bass clearly powerless. I have tested in an approximately 17 m2 large room. In fairness, I must add that the Philips have cost 3 times (but with fewer watts). The boxes from MS-Tech we kept anyway. For the PC workstation, they are amazing and very well magnetically shielded - only for listening in a medium-sized or larger space unsuitable.