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Thread: Grounding boxes - The real deal

  1. #601
    Join Date: Nov 2015

    Location: Wolverhampton

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    I'm Oliver.

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    Quote Originally Posted by karma67 View Post
    hmm,conductive concrete,i wonder if thats in the boxes,either dry or in powder form???
    https://www.powerandcables.com/marconite-earthing/
    How many bags can we order lol
    Analogue: Technics SP10 MK2 > Phonomac AT-1010 MK6 tonearm > Ortofon Kontrapunkt b > Bigbottle Jfet MC Valve Phonostage (Telefunken Valves)
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  2. #602
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 88,411
    I'm AudioAl'sArbiterForPISHANTO.

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    Quote Originally Posted by blackmetalboon View Post
    Hi Marco, your electrician will be measuring the earth fault loop impedance, on a TT earthing system (where safety earth is provided by a ground rod) the better the soil conductivity the lower the impedance. This test is conducted between Live and Earth. Mains impedance is tested between Live and Neutral, this will not be altered by soil conditions.
    Ok, no worries. Thanks for the correction! All I know, is that *however achieved* lower impedance ALWAYS results in better sound quality

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

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  3. #603
    Join Date: Mar 2014

    Location: West Wales

    Posts: 450
    I'm malcolm.

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    Quote Originally Posted by Bigman80 View Post
    How many bags can we order lol
    Cat litter (bentonite) works as well, so just need a copper coil in a litter tray and the helpful kitty keeps the impedance low by using it.
    Audiophile Tosher

  4. #604
    Join Date: Jan 2009

    Location: Sheffield - UK

    Posts: 6,556
    I'm Mark.

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    I used to have an additional earth in my previous house where the listening room was right next to the garden. I keep meaning to fit one at this house but the listening room is two floors up and I just havenít got round to it.

    100% Analogue

  5. #605
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

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    Quote Originally Posted by willbewill View Post
    Cat litter (bentonite) works as well, so just need a copper coil in a litter tray and the helpful kitty keeps the impedance low by using it.
    Ha - I used to 'train' my cats to piss on the earth rods, for that very purpose!

    The conductivity of their piss, also used to vary, depending on the type of food that they were fed... Felix was usually best

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

    BE HAPPY EVERYDAY!

  6. #606
    Join Date: Mar 2014

    Location: West Wales

    Posts: 450
    I'm malcolm.

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    And the ammonia helps clear the wax in your ears
    Audiophile Tosher

  7. #607
    Join Date: Jan 2008

    Location: Wrexham, North Wales, UK

    Posts: 88,411
    I'm AudioAl'sArbiterForPISHANTO.

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    Quote Originally Posted by YNWaN View Post
    I used to have an additional earth in my previous house where the listening room was right next to the garden. I keep meaning to fit one at this house but the listening room is two floors up and I just haven’t got round to it.
    You should make the effort, Mark, and do it [but do it *right* and don't cut any corners, as I know you tend to anyway with your projects]. In conjunction with a dedicated mains radial, it just cleans everything up nicely and really allows your system to release its full sonic potential

    Marco.
    http://www.thestainedglasscompany.com

    "A man is a success if he gets up in the morning and gets to bed at night, and in between he does what he wants to do" -- Milan Kundera.

    BE HAPPY EVERYDAY!

  8. #608
    Join Date: Jan 2009

    Location: Sheffield - UK

    Posts: 6,556
    I'm Mark.

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    Yeah, I had a dedicated mains radial fitted when I moved in. I feel I should do it myself but I can’t be doing with crawling in roof spaces these days.

    100% Analogue

  9. #609
    Join Date: Jan 2008

    Location: Gerrards Cross

    Posts: 2,358
    I'm Tony.

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    Some food for thought think of an RF amplifier in reverse, not a transmitter but the exact opposite, an ultra low impedance sink, RF frequencies are a law unto them themselves normal service does not apply these higher bandwidths. Also think of very low signal levels both current and voltage.
    Coherent Systems
    Real high end sound with musicality not hifi

  10. #610
    Join Date: Apr 2018

    Location: Brighton

    Posts: 48
    I'm Jason.

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    Quote Originally Posted by Mr. C View Post
    Some food for thought think of an RF amplifier in reverse, not a transmitter but the exact opposite, an ultra low impedance sink, RF frequencies are a law unto them themselves normal service does not apply these higher bandwidths. Also think of very low signal levels both current and voltage.
    I seem to remember reading somewhere that high frequency currents, assuming that these are the ones we are trying to minimise, follow the lowest inductive(?) impedance path.
    I’m a little hazy on this (and might be barking up the wrong tree) as it’s been a fair few years since I had any dealings with this!

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