Test hello after 4 days I will send the sound system is now back. The sound is quite good for this price, but the bass and treble can not be adjusted separately, resulting in an absolute knockout. How can you establish a sound system and forget one of the most important points? Although the system sound preferences which has but satisfy me in any way / I'm not Hififreak! While I can adjust the level of each speaker individually. In addition I have to interrupt the sound reproduction and click me laboriously through the settings, only the bass to take out and the result then I hear it when I have music running again. This is too complicated and labor-intensive. I like to listen to without a lot of bass, so that my neighbors are not disturbed. I will now order the 5500 because I know there is a button on the remote where I can adjust the subwoofer directly from -6 to +6, without clicking my painfully through menus, and have to interrupt the sound reproduction. Dear but some spend more euros ... Two stars are there for the good functioning of the system.