Unhalfbricking, I don't think anybody suggested you continue using the same hollow rods once you emptied the sand. I suggested earlier that you replace the hollowed rods with solid steel rods. Others suggested you substitute the sand with micro-fill from StarSound Technologies. Either should be a vast improvement over the hollow rods.
In addition, I do not believe you gave any indication aside from the mdf and sand-filled tubes as to who made your rack and how it is put together. It's entirely possible that your rack's engineering is all wrong for what you are trying to accomplish.
Not to mention that you still have not indicated whether or not you have points under your components and speakers and if so who makes those as well. One should never assume that all products are created equal, even if they appear simple looking on the surface.
Contrary to what others above have said, properly coupling or grounding your components, rack, and speakers to the flooring system is rather easy. So long as you do it right.
But taking only a half-serious approach to this task or any other for that matter, one should not expect anything more than half-serious results at best.
It really needs to be all or nothing if you desire the improvements others rave about.
-IMO
In addition, I do not believe you gave any indication aside from the mdf and sand-filled tubes as to who made your rack and how it is put together. It's entirely possible that your rack's engineering is all wrong for what you are trying to accomplish.
Not to mention that you still have not indicated whether or not you have points under your components and speakers and if so who makes those as well. One should never assume that all products are created equal, even if they appear simple looking on the surface.
Contrary to what others above have said, properly coupling or grounding your components, rack, and speakers to the flooring system is rather easy. So long as you do it right.
But taking only a half-serious approach to this task or any other for that matter, one should not expect anything more than half-serious results at best.
It really needs to be all or nothing if you desire the improvements others rave about.
-IMO