And how, normally went? Just at the manufacturer, some synthetic material is used as I understood on self-keys. Apparently having certain frequency characteristics. Only damplement filters for Armaturin come to Ali.
In any case, I want to understand what is done for what. If with ordinary acoustics, it is more and less understandable, there is a corresponding literature, then about the headquarters in the network especially information and no, especially on the plugs.Post has been editedBloxer. - 19.01.21, 23:52