following the agony of my subwoofer MegaWorks 550 I started on Z906 have been reassured by many tests criticizing the lower power of the subwoofer and good, because compared with Creative, I have never, since the z680, loved politics grossly oversized bass Logitech. And actually this box is a real good surprise: some settings, a stroke equalizer (I go for the PC dedicated to multimedia by analog) and then the bass is punchy, fast and stick as well as for music listening for the home theater. Note that in 5.1 via the decoder of the Z906's all good for gaming (optic connected dedicated machine). But why 2 stars less? Not for the missing HDMI, which is a shame but not wanting amp, my Cambridge sufficient DTS me via X-Fi Titanium PCI-E as for my rare BR. These are the satellites that do not follow. They deliver, despite their 67 W, analog performance that prohibit their music listening (I will not repeat problems in 5.1 with or without decoder). The major drawback for brevity is running out of distinctions between the treble and midrange in 4.1 and 2.1 worse (and I do not even talk of the virtual surround encoding of logitech or sound card). Big disappointment as their predecessor, the Z5500, according to the tests, did not suffer from the comparison with the very aging of Creative THX 5.1 550. False. But thanks to the cinch connections of the satellites I reconnected my 550 and there miracle: a subwoofer risen and mid / high subtler and better tailored to the HI-HI. Finding a good PC kit and an excellent entry-HC for a modest price but music lovers go their way (or they invest in a good or a 2.1 amp but the price ....) and me 5 satellites in their carton.