Machina Dynamic Brilliant Pebbles?

If you want a sincere answer, yes they have a modest benefit. It is not of the magnitude of raising your cables off the floor or of using better power cords, but I will neither sell the pair I have nor buy anymore. Of course, like most tweaks, speakers, or cables I have only a plausible explanation for why they benefit the sound.

Okay, I'll bite. Tbg, what's the "plausible explanation"?

I think these are stereophile class A rated.

These rocks come out of the heads of the clever little clock buyers. So they must be good.

Dopogue, like so many tweaks, resonances seem to be the explanation. The same goes for speakers and suspending wires; doesn't it.

I really don't know what is going on nor is our scientific explanation of much use. Trust your ears has always been my guiding principle. I bought these second hand having not heard a demonstration. The added and thus stayed. The same goes for the Intellegent Chip and in some applications the Shun Mook Mpingo pucks. I just cannot bring myself to try the Clever Little Clock, however, unless I hear a demonstration first.