Apparently I got one of the few boxes with built nuclear reactor. I have the box loaded once (which was probably not necessary) after unpacking and hear with the box the 4th working day in a row music. This means that the box is now running for more than 24 hours. So 3 x 8 hours + the hour today. The blue lights Lichtlein continue diligently to himself. On current or so the box was no longer. Hair is me but not too fancy. The sound is good. The box is robust and appears stable. Once she fell off me and I had briefly panicked because I was expecting a meltdown. But nothing happened.