Hello, I am located near Avignon in the south of France.
Thank you for that answer.
I treated the tweeter and medium with dynamax.
I also placed a layer of dynamax on the bottom at the bottom bottom of each enclosure.
When I opened the enclosure, I realized that there was only acoustic foam on one side on the upper part: I added some on the second side.
Finally, I placed a speaker/floor decoupling system.