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- Users: Ghoostknight
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DIY Ground Box Thread
definitely something i thought about too, tho i think with a fairly good distributed mix the chance of getting wildy varying results is fairly low i imagine you can settle things quite easy with lifting the whole ground box and let it "fall" 1-2cm to the ground a few times :) .... tapping...- Ghoostknight
- Post #1,866
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
not sure how this works on powder but usually its just a small oxidation layer "conserving" the silver under it yea i think my test with different conducting materials is also unclear ... "i think" there are some correlations, for example the pyrite you can use quite much of but for example...- Ghoostknight
- Post #1,857
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
Hello, i was playing around the other day with these materials around piezoelectric crystals: (1Oz) silver copper 1-2mm elite shungit pyrite magnetite i would say i found these most interesting: silver - honestly a bit subtle but still a very nice effect, it seems to boost "neutrality" with a...- Ghoostknight
- Post #1,855
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
i just grabbed a 2 euro tester from aliexpress a few days ago to test around myself here, i think the supra tester works with the same principles, tho maybe with less or more sensitivity https://de.aliexpress.com/item/1005006338698828.html proper shielding does the main job of reducing stray...- Ghoostknight
- Post #1,849
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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(Piezoelectric) Crystals, Hifi and Negative Ions...
ok the ion tester arrived and i had a little play with it... first, it shows 10 * 10 * 10 * 10 ions per cm2, so if the tester shows "1" it means 10.000 ions per cm2 i kinda found out that if you move it around that it actually seems to be more precise, best example is if i hold this thing in...- Ghoostknight
- Post #94
- Forum: Sound Science
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DIY Ground Box Thread
ah thanks, i wasnt aware of this, specially interesting since i think there is a correlation between placing conducting materials near piezoelectric crystals (lower resistance = better) just bought a 1Oz silver coin to test this theory further, and i feel stupid not have started investing in...- Ghoostknight
- Post #1,844
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
260 kelvin is -13 degree celcius, so i guess above -13 degrees hematite (alpha Fe2O3) is weakly magnetic- Ghoostknight
- Post #1,842
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
good question... i thought no but i found this: ----- Fe2O3 can be obtained in various polymorphs. In the primary polymorph, α, iron adopts octahedral coordination geometry. That is, each Fe center is bound to six oxygen ligands. In the γ polymorph, some of the Fe sit on tetrahedral sites...- Ghoostknight
- Post #1,841
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
no problem, i think you can test with a magnet if there is magnetite in it ----- i also bought some hematite "rings" from aliexpress to see how it stacks up to magnetite (mainly to check magnetic vs non magnetic of "similar" stuff) "Hematite (/ˈhiːməˌtaɪt, ˈhɛmə-/), also spelled as haematite...- Ghoostknight
- Post #1,838
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
i think this is one of the cheapest options for Fe3O4 in bulk: https://www.amazon.de/Magnetite-Pulver-Granulat-Gewicht-Inoxia/dp/B07D9M4M3Q 25kg 190 euro 6kg 80 euro 1kg 22 euro by "inoxia" https://www.inoxia.co.uk/products/chemicals/inorganic-compounds/magnetite-powder granule form is...- Ghoostknight
- Post #1,836
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
this doesnt seem to be magnetite (but maybe also worth a shot) " Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe2O3. " "Magnetite is a mineral and one of the main iron ores, with the chemical formula Fe2+Fe3+2O4 " (short formular is Fe3O4)- Ghoostknight
- Post #1,834
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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(Piezoelectric) Crystals, Hifi and Negative Ions...
https://de.aliexpress.com/item/1005005909996282.html there are cheaper options, this was the offer i bought for 34 euro i also bought this one: https://de.aliexpress.com/item/1005005450752171.html but keep in mind that all electrical negative ion generators also produce ozone as a...- Ghoostknight
- Post #93
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
since the ion counter probably arrives tomorrow, let me do measurements first and i might go into the result then :)- Ghoostknight
- Post #90
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
(proper) orgonites contain piezoelectric crystals and conducting materials- Ghoostknight
- Post #86
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
well once the negative ion tester arrives i let picture speak, of course i try to do it methodical i will first try crystals on top of speakers.... same amount of crystals +/- 1g, same crystal size (i got mostly 1-3mm stuff but also some powder stuff to compare), different crystals probably...- Ghoostknight
- Post #84
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
honeslty i sometimes like monologues, better than arguments flying back and forth (or well, comments as the other has figured out arguing is worthless) because everyone persists on their opinion...- Ghoostknight
- Post #82
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
its not about oblivious but about not caring what others think, i just wanna check it out, out of curiousity... and to be sure first of all... before i ramble more about possible benefits :P i find it hard to believe in the "crystal magic" without any scientific clue, thats why i do this...- Ghoostknight
- Post #79
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
or piezoelectric crystals placed on speakers aggregated by vibrations, yes :) there are good examples on youtube where people measure negative ions around orgonites... there is definitely something going on i think mainly wanna check this myself specially for hifi uses where we can actually...- Ghoostknight
- Post #77
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
maybe for you :)- Ghoostknight
- Post #75
- Forum: Sound Science
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(Piezoelectric) Crystals, Hifi and Negative Ions...
Small update, im just waiting for the negative ion tester to arrive since the paper test i did wasnt "obvious", so we should see in the upcoming days some measurements with it to conclude this topic...- Ghoostknight
- Post #73
- Forum: Sound Science
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DIY Ground Box Thread
this is graphite, not magnetite couldnt find much offers on the EU market and it somewhat lines up with the EU prices i just bought 100g powder for 9 euro from a EU seller rough magnetite crystlas 5-10mm is also around 10 euro for 100g 2-5mm 10 euro per 50g What does this stuff cost in US? im...- Ghoostknight
- Post #1,829
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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DIY Ground Box Thread
A seller im in contact with on etsy just made a new listing for me crushed magnetite in different sizes, i thought some of you might be interested too :) https://www.etsy.com/de/listing/1744183255/aaa-crushed-magnetit-edelstein-grob-alle ah glad you figured it out :)- Ghoostknight
- Post #1,826
- Forum: Cables, Power, Tweaks, Speakers, Accessories (DBT-Free Forum)
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Is this normal behaviour for dacs?
i think i can decide myself what i go on and on about ;)- Ghoostknight
- Post #65
- Forum: Sound Science
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Is this normal behaviour for dacs?
the -78.7db are also SNR, maybe this gets calculated into the thd+noise measurement? Here with distortion lowpass at 20khz gain -10db: -92db noise is probably more in line with what amir measured it makes sense that SNR goes down with reducing volume... i guess the thd+n measurement takes the...- Ghoostknight
- Post #60
- Forum: Sound Science
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Is this normal behaviour for dacs?
Can i take from this that noise is "always" higher than any distortion component? and distortion just shows up because of the FFT processing?- Ghoostknight
- Post #58
- Forum: Sound Science