Is your language Italian? I am not sure what you are asking.
By “the plane” do you mean the keyboard? By “the strong” do you mean “forte,” how loudly it plays? By “floor” do you also mean the piano keyboard?
I do not use the pickup for amplification, but the Hammond 44 has a full, strong sound without any amplification. The sound is also even and consistent through the whole keyboard.
With many melodicas, if you blow hard and play very loudly, there are problems with the keys. This is not a problem with the Hammond 44. It can be played loudly with no problems.
You can see from pictures that it is a pretty instrument. When you hold it in your hands and play it, this will be even more obvious. It is pretty like an Italian motorcycle.