Is it the type of block that's made from strips of wood glued together? If so I have reservations about how that would hold up to all those vibrations in the long run. It also strikes me as something that might resonate, which would be really bad.
I'm not really sure that's an apples-to-apples comparison though. Turntables don't generate anywhere near the vibrations that a subwoofer will, so what you can get away with to dampen those is a whole lot less then what a sub will require.Butcher block is even used in making turntable plinths. In turntables, builders are always working to eliminate resonance.
What do you mean by "the expansion"?Someone on avs told me the expansion would make a box with this crack or split
That is correct. The wood expands and contracts depending on the weather. Temperature, Humidity etc.Someone on avs told me the expansion would make a box with this crack or split