So I chose a more expensive cable, hoping to have a much better quality. The price is about 18 euros, which is not given. The cable seems robust, and connectors also seem good. For now, I have had no problems, the sound is very good (much better than my old cable). I did not feel connected to the audio cable length loss (5 meters all the same, which is significant).
In sum, I am satisfied with this cable and I hope the quality will be at the rendezvous in time.