I bought these speakers after I was dissatisfied with the (allegedly) big brother "Companion 5" (see review here). To make it short: I do not have 2.1 Set heard that creates it so excellent to put together the external subwoofer ("Acoustimass module") and the satellite through all volume ranges across as harmonious a convincing overall picture. Precise playback, clearly identifiable instruments, clear highs, full bass are just a few of the attributes of this product. The workmanship is top quality in every detail, the satellites are kept discreet and take up very little space. The complained in another review noise in my case only audible if I hold my ear closer than 10cm to a satellite (the Companion 5 the noise was much stronger and also took to if you have increased the volume setting. This is the Companion 3 is not the case).