For those who need to learn discernment in such matters, I offer my latest article at Dagogo.com, "Audiophile Law: Burn In Test Redux", wherein I show that this kind of activity is a waste of time and leads to poorer system building.
Schumann Resonator
I got 2 of these from Amazon...careful that free returns are applicable. I charged them up, turned them on and holy moly.....they do help with my system. What I hear is clarity....space between instruments, a definite difference in upright and electric bass, wider soundstage...you know...all the good stuff. At first I thought it might be increased brightness, but no....it is still the same in that regard. I still can't believe it, and will listen again tomorrow (saved the packaging for the return)...but today, I'm about to keep them.