Preliminary DIY Grounding Box Result


I live in a big, downtown high rise building. Our grounding is crap. I just took a 12 awg sliver stranded wire and stripped both ends. One end went straight into the center of a 3 pound bag of magnetite, and the other stripped end was wrapped around a spare coax rca input (outside negative) on my DAC.

Result: Highly noticeable "analogue-ing" of the sound, along with more dramatically more pronounced soundstaging. Space between the instruments seems like it tripled. Smoother, detailed highs and warmer, dynamic vocals.

I have some quartz coming and will mix it in. Plus I’ll run to other components and report back. Just wanted to try this for a quick test.
tomask6
There is a "Box" from England that has a circuit which "fools" shortwave radio EQ into working as grounded when in fact there  is "No" actual ground. Developed for enhancing the signal quality available to people relegated in that hobby to "Odd" set-up area's. There are a few video's on "Youtube" about it with this, "Circuit". They linked an address as well for a schematic of the circuit. "Which I downloaded but have yet to really investigate asn to what that circuit should actually do". I have now looked "Inside", a couple of different "Grounding boxes". They have had basically the same interior set-up with a foil or thicker metal, "V" inside.  Some had metal plates behind the "V". Some had several of the plates. One had two copper rods behind that, "V".
  One had what I believe is a "Capacitor bank" as well inside. but at the time I did not have anything on me to test it with. These were the size of "Soup cans". And with the leads set-up the same as the average catalytic cap you see in most amps.
One used a foil made from silver as the "V". The rest were Cu.
One ,"V" was even a "Grounding Bus Bar" that looked like it had been placed into a vise at the half-way point and then, "Beaten" with a maul until the, "V" shape they apparently wanted was achieved!  
  All had varied amounts of a black mineral. Some had the mineral in plastic bags. Some were simply loose inside the boxes interior filling it.
And that is where I am currently at. 
In shortwave radio and broadcast AM radio, part of the signal travels thru Planet Earth. So a stake in the garden acts as part of the antenna. When a path to Planet Earth is not accessible, a 'counterpoise' is sometimes used. It would be an arrangement of wires or metal objects to act like Earth.
An all metal water pipe system is a much better 'ground' than a stake in the garden. But many cities are replacing metal with plastic, same goes for inside homes.
speedskater
In shortwave radio and broadcast AM radio, part of the signal travels thru Planet Earth. So a stake in the garden acts as part of the antenna.
You’re more than a little bit confused. A stake in your garden isn’t going to improve your AM radio reception. A radio station ground plane is part of its antenna system, but the signal doesn’t travel through "Planet Earth" on its way to you.

And oddly, a radio station ground plane isn’t even necessarily connected to ground itself.