I have been given this part for my birthday and was very surprised at what such a little "Brüllwürfel" produces a great sound. However, I had a few titles notice that this part of the Stereo has big problems. Title as "paberback writer" UAE., In which only one channel is equal to one provided with music, the cube does not recognize and will remain silent for that period. Stupid !! I hope this is a single product defect.