Here is my two cents worth and probably nobody will agree with me. The MDF is very good for shelving, and the sand fill is also a step in the right direction. You want to eliminate vibration from the rack and your components. The only thing that should be spiked to the floor is your speakers and adding a good solid base, spikes and weight to them is helpful. Vibration kills dynamics and details IMHO.
I have known a local designer in New Jersey who has shown me the light on this subject and proven it to me many many times so if you wnat to email me, I will pass along what I have learned so far.
Happy Listening.
I have known a local designer in New Jersey who has shown me the light on this subject and proven it to me many many times so if you wnat to email me, I will pass along what I have learned so far.
Happy Listening.