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Thread: This Device is phase-inverting

  1. #11
    Join Date: Jan 2009

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    I'm openingabottleofwine.

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    Neither could I when I tried it. One less thing to worry about.
    Barry

  2. #12
    Join Date: Jan 2020

    Location: Sheffield

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    I'm Evie.

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    Conrad Johnson are hot on this topic and have a doctrine of 'absolute phase'. I could never tell the difference but I did it all the same, I.e. I swapped black and red on my speakers. If anyone can tell the difference on a blind test (consistently), then I may reevaluate my position and believe rather than subscribe on the off-chance.

  3. #13
    Join Date: Jan 2009

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    I'm openingabottleofwine.

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    For what it's worth, here were my thoughts on the matter: https://theartofsound.net/forum/show...Absolute+phase (ignore the second part of the post).
    Barry

  4. #14
    Join Date: May 2016

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    I'm Andrew.

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    Quote Originally Posted by Barry View Post
    For what it's worth, here were my thoughts on the matter: https://theartofsound.net/forum/show...Absolute+phase (ignore the second part of the post).
    Well agree with your findings Barry , I appreciate your help , stay safe


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  5. #15
    Join Date: Feb 2010

    Location: Moved to frozen north, beyond Inverness

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    I'm Dave.

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    Quote Originally Posted by Firebottle View Post
    NO NO NO>

    It's an unbalanced signal, otherwise known as single ended, If you swap the signal wires you connect the screen to the 'hot'.

    Swapping the speaker wires over is different and perfectly OK.
    Thanks. I think it would depend on the circuit - but you're right in this case I'm sure. So stick with the loudspeaker cable swaps - which should avoid any problems.
    Dave

  6. #16
    Join Date: Sep 2009

    Location: west mids, UK

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    I'm Phil.

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    I just noticed audionote M-one pre amps are phase inverting , slightly puts me off them but from what i gather from this thread , it makes little difference

    from the blurb

    Audio Note (UK) M1 Line Pre Amplifier is a pure Class A, Zero Negative Feedback design, employing a single ECC82 dual triode valve.



    It has been specifically engineered for sonic performance rather than technical specification, and offers an outstanding level of performance and value.



    It fulfils all Audio Note (UK) Level 1 criteria: -



    Pure Class A operation

    Zero negative feedback

    Materials and component quality



    The M1 Line and M1 Phono are phase inverting.

    https://www.audionote.co.uk/m1
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  7. #17
    Join Date: Feb 2008

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    I'm NotTakingLifeTooSeriouslyTheseDays.

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    It won't make a huge diffrence phil, and you can always swap the negative, and positive leads around on the speakers, to see which you prefer.
    Much of the equipment out there inverts the signal, they just don't advertise the fact!
    "Today scientists have substituted mathematics for experiments, and they wander off through equation after equation, and eventually build a structure which has no relation to reality"
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  8. #18
    Join Date: Sep 2009

    Location: west mids, UK

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    I'm Phil.

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    Thanks , as far as I can see only the m1 and m2 are phase inverting , the m3 seems not , am I right in this ?
    ou might slip, you might slide, you might
    Stumble and fall by the road side
    But don't you ever let nobody drag your spirit down
    Remember you're walking up to heaven

    Don't let nobody turn you around
    … Walk with the rich, walk with the poor
    Learn from everyone, that's what life is for
    And don't you let nobody drag your spirit down

    Eric Bibb

  9. #19
    Join Date: May 2020

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    I'm Philip.

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    I've been curious about this as I'm about to start refreshing a Quad 405-1 and I know it is phase inverting as standard . Used with a Quad pre amp that would of course right itself. Some of the mods for this change it to non-inverting and I wasn't sure if it was necessary. Sounds like it isn't...
    Never underestimate the power of stupid people in large numbers...

  10. #20
    Join Date: May 2008

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    I'm Rob.

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    Some Class D amps are phase inverting and I can hear a definite change when swapping RED for BLACK speaker cables.
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