It's a conspiracy, marketing or both. I am with the OP -- I struggle to understand how feet and other tweaks the night and day differences that I read about, moreover that the component itself was seemingly putting out a fraction of its potential without them. I've decided to take all those testimonials I read about with a lot of salt. Money for me is the determining factor -- beyond what i consider a reasonable expenditure, I won't try it. Any 'real' money is going to be spent on an upgrade, not a tweak.
In general, what I have discerned is that anything I put on brass spikes seems to be lighter in bass, thus sounding more 'airy'. Sorbothane has improved bass slightly in some instances (CD players). No tweak has ever been night and day. And the best tweak I've ever done was not to any component but to the room with acoustic paneling.
In general, what I have discerned is that anything I put on brass spikes seems to be lighter in bass, thus sounding more 'airy'. Sorbothane has improved bass slightly in some instances (CD players). No tweak has ever been night and day. And the best tweak I've ever done was not to any component but to the room with acoustic paneling.