Speaker crackles, uncosted speaker controls

- Speakers crackle with each mode (DAB, Bluetooth, Aux). Bluetooth and Aux I could test with 2 playback devices, and it was difficult to notice
- The volume control is unfortunately ill-conceived, because he can not be free to rotate in both directions, but only briefly to the left or right tilt to make each up or down a level. Far too complicated for something like a volume knob.
- On top of the device physics plays a trick because it creaks and crunches extreme in some songs. As a test song was "The Boxer Rebellion - Keep Moving" is where now already flunked the 3rd Radio this type :-(.

The fundamental crackling could be a defect rather than a simple lack, but it goes one way or return.