The only thing that is bothering me so that the boxes automatically turn off. (And I do not mean the energy-saving mode, which comes when no audio signal is transmitted for a few minutes.) The boxes stand namely also from even when music is playing; between by simply going by the LED lights, and eventually back to. I thought it was only for a defect until I have found that this happens when the volume of the controller a long time is set too low. - I turn to you, the system also switches back on.
Efficient energy use very well, but to me it is uniquely efficient if the standby mode is already set when the music a long time only runs quietly!
Whether it is now a defect or not, for a second time I would not buy this speaker system!