How does wood hardness affect the sound of a TT on a wood TT platform?

The wood in a plinth of turntables has much more influence for example than the wood used for making table tennis rackets.
Have you ever tried to use table tennis rackets with identical rubber but different woods?

I have been trying for a long time and there are macroscopic differences.
I believe that for the plinths the same thing is the same, the problem is that nobody has ever built plinths with different woods and then made tests and measurements with laboratory instruments.