Entreq Ground Boxes & Cables - Page 8
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  1. #71
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by mep View Post
    I wonder how many people have blown up their gear because they grounded things that should have never been grounded? We probably don't hear those stories just like gamblers only tell you when they win.
    Well the best simple definition of 'ground' is:
    That 'ground' acts as a common reference point.

    From the descriptions of these boxes that I have read, they don't act as a common reference point.

    In fact the boxes don't meet any definition of 'ground'.

    So it's hard to image a way for them to blow anything up.

    * * * * * * * * * * * * *
    In the cases where they are connected to RCA chassis jacks that have plastic insulator rings, the box & wire can act as an interference antenna.

  2. #72
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by Speedskater View Post
    Well the best simple definition of 'ground' is:
    That 'ground' acts as a common reference point.

    From the descriptions of these boxes that I have read, they don't act as a common reference point.

    In fact the boxes don't meet any definition of 'ground'.

    So it's hard to image a way for them to blow anything up.

    * * * * * * * * * * * * *
    In the cases where they are connected to RCA chassis jacks that have plastic insulator rings, the box & wire can act as an interference antenna.
    I wasn't strictly speaking about the Entreq boxes, but more to the point that we have some people who are bereft of electrical knowledge who now think everything should be grounded. And if the Entreq boxes aren't really grounded to ground, what are they doing? Are we floating ground now?
    Technics SP-10MKII table in custom plinth with custom power supply made by Peter Noerbaek of PBN, SME 312s arm, Dynavector XV-1s cartridge, Zesto Andros 1.2 phono stage, Otari MX-55 2 track R2R, Ampex 350 tape repros, laptop music server running JRiver 20, Mytek Stereo 192 DAC, ARC Ref 6, ARC Ref 75 with KT-150s, NOLA KO speakers, Viero Equilibro Level 3 speaker cables, and a pair of Definitive Technology Ref subs.

  3. #73
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by mep View Post
    And if the Entreq boxes aren't really grounded to ground, what are they doing?
    From an electrical engineering perspective, they arn't doing anything.

    Are we floating ground now?
    What does this mean?

    Yes, we can float an audio circuit common from an AC power circuit Safety Ground.
    But the basic definitions for ground are:
    a] Common reference point.
    b] Path to such a point.

    Most of the boxes don't meet these definitions, but I recall seeing one box that did. (it functioned as a terminal strip for several ground wires)

  4. #74
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by Speedskater View Post
    Well the best simple definition of 'ground' is:
    That 'ground' acts as a common reference point.

    From the descriptions of these boxes that I have read, they don't act as a common reference point.

    In fact the boxes don't meet any definition of 'ground'.

    So it's hard to image a way for them to blow anything up.
    My understanding about the possibility of some connected amplifiers failing is if the ground box connection points are truly common and are wired to the negative output terminals of a stereo amplifier which are not true circuit grounds could result in blown outputs.

  5. #75
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by Speedskater View Post
    From an electrical engineering perspective, they arn't doing anything.


    What does this mean?

    Yes, we can float an audio circuit common from an AC power circuit Safety Ground.
    But the basic definitions for ground are:
    a] Common reference point.
    b] Path to such a point.

    Most of the boxes don't meet these definitions, but I recall seeing one box that did. (it functioned as a terminal strip for several ground wires)
    I don't know if we are arguing semantics now. Voltage is referenced to ground and you either have a true ground or you don't. So I don't understand how people are connecting a ground wire to a device that is not truly grounded and somehow they think they have now established a "better" ground.
    Technics SP-10MKII table in custom plinth with custom power supply made by Peter Noerbaek of PBN, SME 312s arm, Dynavector XV-1s cartridge, Zesto Andros 1.2 phono stage, Otari MX-55 2 track R2R, Ampex 350 tape repros, laptop music server running JRiver 20, Mytek Stereo 192 DAC, ARC Ref 6, ARC Ref 75 with KT-150s, NOLA KO speakers, Viero Equilibro Level 3 speaker cables, and a pair of Definitive Technology Ref subs.

  6. #76
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by audio.bill View Post
    My understanding about the possibility of some connected amplifiers failing is if the ground box connection points are truly common and are wired to the negative output terminals of a stereo amplifier which are not true circuit grounds could result in blown outputs.
    I don't know, but I don't believe the for the most part the terminals are commoned together. That is they don't have continuity between the terminals.

  7. #77
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by mep View Post
    I don't know if we are arguing semantics now. Voltage is referenced to ground and you either have a true ground or you don't. So I don't understand how people are connecting a ground wire to a device that is not truly grounded and somehow they think they have now established a "better" ground.
    Not semantics, voltage is referenced between two points, one of those points may also be 'ground'.

    What is a 'true ground' and what is it's function?

  8. #78
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by audio.bill View Post
    My understanding about the possibility of some connected amplifiers failing is if the ground box connection points are truly common and are wired to the negative output terminals of a stereo amplifier which are not true circuit grounds could result in blown outputs.
    There is a warning on the Stillpoints website:

    "You must use one Ground box and one ground cable per channel! Never use a single ground box to connect both channels. You will likely damage your amplifier."

    You can use one Poseidon which has three independent ground terminals.
    Dan

    I’m in an old leaky boat Prayin’ For Shore

  9. #79
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    Re: Entreq Ground Boxes & Cables

    Quote Originally Posted by Speedskater View Post
    Not semantics, voltage is referenced between two points, one of those points may also be 'ground'.

    What is a 'true ground' and what is it's function?
    Seriously? I'm not playing.
    Technics SP-10MKII table in custom plinth with custom power supply made by Peter Noerbaek of PBN, SME 312s arm, Dynavector XV-1s cartridge, Zesto Andros 1.2 phono stage, Otari MX-55 2 track R2R, Ampex 350 tape repros, laptop music server running JRiver 20, Mytek Stereo 192 DAC, ARC Ref 6, ARC Ref 75 with KT-150s, NOLA KO speakers, Viero Equilibro Level 3 speaker cables, and a pair of Definitive Technology Ref subs.

  10. #80
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    Re: Entreq Ground Boxes & Cables

    Nordosts’ brand Q Kore is similar and provided an amazing change in sound for me. The unit provides two paths; distribution and components. I have only installed this on the component side, but will do the distribution side this upcoming weekend.

    I can only assume Entreq is similar in nature, and if it does close to what Nordost accomplished, it was worth the investment. Louder with a clear soundstage. I am really focused on power products to the various gear and room treatments as I have heard the difference; now my newest part of the hobby.
    Source: Aurender N10, PS Audio Direct Stream and Memory Player
    Power & Sound: D’Agostino Pre-Amplifier to D’Agostino Momentum 300’s driving Wilson Alexia’s
    Power Conditioning and Filters: Nordost QRT Power Products, PS Audio P10, Furutech Flux-50 NCF Filters & PS Audio Noise Harvesters
    Cables, Isolation, Reflection and Absorbtion: Nordost Power & Interconnects, HRS M3X Platforms, HRS Vortex, HRS Damping Plates, Stillpoint’s Isolators and Vicoustic Room Treatments

 

 
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