Hello all,
Thank you for your insights. @Solid Core, I’ll order some powdered tourmaline and try it out.
The notion of the reverse piezoelectric effect is indeed interesting. @Matthias, I tried again the agate on power cables last night and did not find it deleterious this time. I think it was just a shock before, because the sound was very different. And it is different, but it’s hard to know whether it is better. I note that you mentioned the electrical field – it might be helpful to bear in mind that the energy flow is always within the field (i.e., through space, with ‚flux‘ especially strong around active components) rather then within wires and the spatial location of this flux becomes much less based around the wires or PCB traces when we get to the MHz range. I wish I understood this area more, but I think that this is broadly accurate.
In any case, I am an experimenter who trusts his ears. I agree with the descriptions of less stress and a blacker background from the agate. Rose quartz also has a similar effect, but it is less calming. Some might prefer it. I have only larger lumps of tourmaline, but not powder. I think I could hear an effect, but it is very very subtle compared to the agate, whether beads around the ethernet cable or chunks on the wireless receiver or streamer.
I’m not sure I understand the construction of the copper tube plugged or soldered onto the “leading pin” in the middle, then filled with tourmaline. Where does the wire (signal) connect in this arrangement, please?
Thanks and best wishes,
Harry