Next week i’ll investigate with a friend who has some soldering gear.
There is a wire on the crossover board that that went off several months ago.
At the time i used super glue to stick the wire back on the board, it worked for the past 3 months but perhaps today the contact between the wires and the soldering is not good anymore.
We will redo a nice new soldering on the board and see if my problem comes from that.
Keep you guys posted.