Not so fast. Translate the review first before drawing conclusions :
"They contribute to the construction of the stereo image by increasing the sense of depth and character of holographic
pregnant. Their form, their profile, their internal cavity, while helps capture the resonances of the box to better
evacuate. Precisely machined aluminum in high quality, these warheads are strewn with parallel striations determine the velocity at which the distortions are removed. Rather than a long speech, a short test allowed fully understand how the Beak are accessories frighteningly effective. "
According to the review, they seem to be at least as effective as the crystal you place on your CD player, and might even outperform a typical set of speaker wire stands (not the ones made by the deaf monk, of course).
Seriously, it's probably fair to say that nobody I know has seen a coherent explanation of how placing these on top of your speaker could significantly affect the sound. I can tell you from experience that .50 BMG bullets on top of speakers do not seem to have a noticeable effect on imaging
