BUT: the described Standby mode is something "overactive". After switching it flashes around in different colors around the volume knob. My hope, it still handle is a reference to the boxes or the input is not connected has unfortunately broken up quickly -> the LED behind all the time is flashing wildly. And what is the silliest: you can hear from the speakers a faint electric chirping in time with the LED. Why not just build the boys just an amplifier?
The noise will not be as relevant to my application because the boxes are far enough away from me and it is then hardly noticeable.
Another note: If you want to mount the amplifier while hanging can install the inner life turned 180 degrees, but will still need 2 Drill holes to be screwed to a heatsink to the chassis. I've saved myself because I can live with the upside-down writing on the front panel. Only the LED inside I will darken.