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Thread: What constitutes a grounding box?

  1. #111
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    Quote Originally Posted by Pharos View Post
    I love this thread.

    To me, al that is being done is earthing a box via a wire and croc clip to the earth of the equipment, which may provide some minimal screening. I can't even see why it would introduce noise.

    However the divided camps and the ridicule are wonderful; what a lovely, innocent, and mad pursuit audiophilia is.
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  2. #112
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    Years ago someone (no names mentioned - but a purveyor of tweaky treats) added a grounding socket (linked to PE) to a 6 socket extension so that a length of wire could be attached to the casing of an amp or other piece of equipment. Would this have done anything?
    Buy Bose...And get your parking validated!.

  3. #113
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    Quote Originally Posted by Puffin View Post
    Years ago someone (no names mentioned - but a purveyor of tweaky treats) added a grounding socket (linked to PE) to a 6 socket extension so that a length of wire could be attached to the casing of an amp or other piece of equipment. Would this have done anything?
    By PE you mean power earth?
    Yes, it would have provided a physical earth connection.
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  4. #114
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    I had my system blessed by a Jedi Master (at least, that's what he said he was). It sounds totally unbelievable now (I just wish it was a little more believable though). His parting words were "the farce is strong in this one". Funny, I'd actually thought the word was supposed to be 'force', but there you go.
    "when common sense, logic and plausibility are excluded. All that remain are foolishness and lies"

  5. #115
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    Quote Originally Posted by walpurgis View Post
    I had my system blessed by a Jedi Master (at least, that's what he said he was). It sounds unbelievable now (I just wish it was a little more believable though). His parting words were "the farce is strong in this one". Funny, I'd actually thought the word was supposed to be 'force', but there you go.
    i blessed my own only person who would
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  6. #116
    Join Date: Mar 2010

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    Quote Originally Posted by Puffin View Post
    Years ago someone (no names mentioned - but a purveyor of tweaky treats) added a grounding socket (linked to PE) to a 6 socket extension so that a length of wire could be attached to the casing of an amp or other piece of equipment. Would this have done anything?

    Yup it would do what this box doesn't- provide a path to earth for small currents flowing in the chassis and across the signal gnd. Perfectly practical, if somewhat hit and miss.

  7. #117
    Join Date: Jan 2009

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    How are these 'grounding boxes' connected to the equipment whose performance they are supposed to improve? Are they connected to the metal casing, or are they connected to the outer signal-return of an RCA phono socket?
    Barry

  8. #118
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    I'm Mark.

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    They are connected to the return of an RCA connector and you are supposed to plug them into an unused socket on the back of your amp etc. They are supposed to be for signal ground, not mains ground/earth. Having said that, signal and mains ground are often connected within components - at least, in the UK they are...

    100% Analogue

  9. #119
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    Does anyone here (Simon? Alan?) have a signal generator/analyser and oscilloscope that could be used to replicate the tests used in the article linked to earlier in this thread?

    For example I have a Russ Andrews power purifier with its claritymains and zapparator modules that could be tested. There modules claim to purify mains, reject RFI etc.
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  10. #120
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    So if these boxes (and their connecting cables) act as inefficient antennae to RFI, the RFI will be injected into the audio circuitry on its way to the mains earth. The impedance will be low (not necessarily zero) so too will the injected currents. It is hard to see how these devices could have any effect.
    Barry

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