An ideal treatment for vibration:
An ideal structure for under board is to top vibration convey to the floor, and reversed vibration back from the floor. It does not matter what kind of material and structure is used inside the board, it still makes the played backed sound from the speaker very dirty.
Top board is placed on top of the polypropylene particle filler. This makes the floating structure of YST-64. Any vibrations from the speaker travels through the surface of top board and reaches the polypropylene particle filler.
Polypropylene particle absorbs vibration and changes into thermal energy.
This makes the sound from the speaker extremely clear.
Cost down but kept the sound quality!
We chose the system of having the user to assemble the YST-64 by their self.
This lead to price down, but kept excellent sound quality. The top board is made from Birch plywood from Finland. Also Birch plywood keeps the price very low and excellent sound quality!