Have now also thrilled the Z5500 and am. Had before the previously the X-530 system and that was for the price okay. But the Champions League and the sound is awesome. Good treble and bass .. what to say strong and clear. My PS3 and my computer now run on the system, connection without problems. However, the supplied speakers cable I found it a little modest. Have I gained what 2.5mm from the terminals ago just fits. Hence only 4 stars (actually 4.5) terminals for the cable and connector. Am not a professional HIFI and maybe shake mitgeliferten Kablel. But I have a cable length of 16m and have therefore replaced the cable. (Gesammt 50m) So as I said, and also from the other .. very big tennis. If the system can only recommend gewalltiger sound.