[KolfMAKER]

OK, clear.

About the BeoSol product; I have tried to get into contact with him. But I haven’t got any reply.I have done extensive searching on the internet, but haven’t found that same box, or an alternative that also works autonomous.

I do like his product, because it can sense an audio signal and then automatically send the trigger signal to the right Powerlink pin. Like you say, this is an autonomous working product.

I will keep on searching, and I am also looking into building a circuit that handles auto audio signal sensing and auto sending a trigger signal. If I have any news, I will report back.