Besides: How does it sound?
Hi Pegasus
Do you want the description compared to the other turntables ?
or
do you want to know how certain albums, songs, sound, when I am in a certain mood, with a little drink, and with the full moon in play ? :^)
But - looking at physics - how could these holes provide isolation from either acoustically transferred noise (which, if they’d change at all, would rather increase) or structure borne noise.
Let’s forget the massive cavities under the motor and armboards for a moment and concentrate on the build itself - Review the pic I posted. Look at the alternating layering. The design is meant to dampen/absorb resonances. The armboard is connected to the plinth in four spots where the bolts go in. Armboards can be any material - interchangeable- mine came as a hardwood.
Note: Some, build a plinth for an idler one time, and then modify it, or leave it alone. JN has gone through XX maybe XXX ? plinth builds to get to where he is today with his tables. Just saying. He does have passion. An owner of such a table does "not" think about changing any part of it because of the road it took. You would be messing with it. It is, the table, based on his vision.
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Hi Harry - do you think you will be up and running soon ?
Chris