Description

Ground Box 6”x6” (2)
-  Made of scrape melamine covered in contact paper
- Copper plates, copper tape,  banana plug, bare copper ground wire, 
   12ga stranded copper speaker wire 
-  50 g Tourmaline fine stones
-  225g raw Tourmaline stones
-  50/50 volume mix of rock salt (4 lbs) and horticulture charcoal (2qt)  Connected one box to each speaker neg posts

Large Ground Box 12”x7”x6”
- Same as above with these additions
- 2 banana plugs
- Copper color aluminum plates (work as well as the copper and easier
   to cut and shape)
- 500 grams of natural tourmaline
- rock salt (8lbs), charcoal (4qts), graphite powder (2lbs),
   sand(quartz) (2lbs)
Connected large box to power conditioner chassis ground with power
    cord cable ground only connected to spade plug with hot, neutral 
    and ground wires twisted together.
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    • Ground Box DIY

Comments 12

Showing all comments by tksteingraber.

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Owner
@audio_phool     I do have it plugged into my ground see prior post.  I chose my ingredients after researching materials.  Many of your ingredients are pricey and don’t offer much benefit over rock salt vs quartz, charcoal vs graphite.  I did add small amounts of tourmaline, Graphene but wanted more volume with charcoal and salt. My 2 cents..have fun with it.

tksteingraber

Owner
@audio_phool  I forgot to mention that on my power conditioner box it is connected to the wall duplex outlet ground which draws noise out of the box to the house main grounding rod outside.

tksteingraber

Owner
@audio_phool These are my understandings but I’m not a science expert:
1- Copper or Aluminum sheets attached to ground wire connection provides more surface area to draw and collect the ground noise so it can be filtered out by the charcoal, crystals, salt etc.
2- Discharge occurs naturally through absorption by the charcoal, crystals, salt etc…it is maintenance free.  Tom

tksteingraber

Owner
Sorry and glad I could be an inspiration!

tksteingraber

Owner
Sounds like a project you need to complete and see for yourself.  Have fun with it. If it doesn’t help chock it up as a learning experiment…cheers!

tksteingraber

Owner
@serjio it’s a fun experiment with a 6”x6” ground box or you can call it my “Bad Boy Matchbox”. -) When attached to the audio outlet ground and my power conditioner ground lug it provided a cleaner/quieter noise floor.  It has gotten better after several hours of use.  I attached it to my phono preamp ground lug as well and saw improvement there as well. Still work in progress…i want to try using better quality larger gauge wires to see if that has any impact. Look up ground boxes on the net…

Read “The Second Noise Floor” forum thread for more info. https://forum.audiogon.com/discussions/a-second-noise-floor

tksteingraber