I got some MoPads for my Tannoy reveal 5a's. The bass vibrations were just too much. Now I few months ago I constructed several diy Ikea shelves to get more workspace on the desk.

The mopads seem to work, and indeed I can't feel any vibrations on the higher shelf, the surface they're on. However I can feel vibrations through the bottom, main desk more than ever - they're really bad.

I've been racking my brain as to why to this is for a while, and I think it may have something to do with both shelves/desktops being hollow - Ikea standard. But then I wonder why the top shelf isn't vibrating as well.

Any help would be much appreciated - this is killing me...