While I could not tell the difference in sound quality by connecting the notebook and the speakers, connect the notebook to the headset was absolutely unusable. The volume has gone totally in the basement and the sound quality was suffering extreme. It does not matter which of the six ports used.
As a technical layman I can not explain this huge difference, but it is available. Therefore, two points are deducted.
The next few days will arrive my Bluetooth adapter. If the operating normally, I will keep the switching console anyway and look me for the headphones is another solution.
