Nice to see a post from Lak, above. I agree with both his and Stanwal's points. It seems to me the move you are considering won't deal with the key issue, which is the material of the shelves. Every good shelf I have seen or heard has used wood or carbon fibre in some way, for resonance damping or tuning, and the support members have been made of metal for rigidity.
For a personal example, my welded steel Target rack uses light, rigid plywood for shelving. The components sit on various antivibration footers. I'm planning on replacing some of those plywood shelves with hard maple.
For a personal example, my welded steel Target rack uses light, rigid plywood for shelving. The components sit on various antivibration footers. I'm planning on replacing some of those plywood shelves with hard maple.