AC iPurifier has anyone tried it"?

afterburnt
afterburnt Posts: 7,892
in Electronics
https://ifi-audio.com/portfolio-view/accessory-ac-ipurifier/
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  • Clipdat
    Clipdat Posts: 12,949
    It's $100! You should order one and let us know what it does.
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  • jayman_1975
    jayman_1975 Posts: 672
    I ordered one today. Going to see if I can eliminate some of this DC noise coming from my house wiring.
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • jayman_1975
    jayman_1975 Posts: 672
    Yeah, got it a few days ago. No help. Sending it back tomorrow
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
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  • afterburnt
    afterburnt Posts: 7,892
    @jayman_1975 can you descibe the noise and how it makes you feel?
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  • Clipdat
    Clipdat Posts: 12,949
    jayman_1975 wrote: »
    I ordered one today. Going to see if I can eliminate some of this DC noise coming from my house wiring.

    Don't you need something like this to combat DC on the AC? https://emotiva.com/collections/accessories/products/cmx-2
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  • Tony M
    Tony M Posts: 11,159
    ^^^^^^^^^^^^^^^^^^interesting unit. ;)
    Most people just listen to music and watch movies. I EXPERIENCE them.
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  • mhardy6647
    mhardy6647 Posts: 33,895
    edited May 2019
    IF the goal is removal of a DC offset from the AC mains... an isolation transformer (i.e., any transformer with inductively-coupled primary and secondary windings -- as opposed to an autoformer) will isolate any DC riding on the input from the output.

    You can use any 1:1, isolating transformer of sufficient VA capacity to eliminate a DC offset on an AC line.

    Something like this is handy for low-medium power requirements. I think I paid $30 for this at a radio fleamarket. Note that, besides providing isolation of the load from the AC mains, this doohickey also provides some limited, fixed adjustment of the output voltage (90 to 140 VAC, based on a nominal 120 VAC input) -- i.e., some of the functionality of a Variac, but with the added benefit of isolation. Variacs are variable autoformers, and as such do not isolate the load from the AC mains.

    hg4y755475wc.jpg

    The isolated outlets are rated for up to 350 VA at 140 VAC (350 VA is equal to 350 watts
    if the power factor of the load is 1).


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  • tonyb
    tonyb Posts: 32,981
    mhardy6647 wrote: »
    IF the goal is removal of a DC offset from the AC mains... an isolation transformer (i.e., any transformer with inductively-coupled primary and secondary windings -- as opposed to an autoformer) will isolate any DC riding on the input from the output.

    You can use any 1:1, isolating transformer of sufficient VA capacity to eliminate a DC offset on an AC line.

    Something like this is handy for low-medium power requirements. I think I paid $30 for this at a radio fleamarket. Note that, besides providing isolation of the load from the AC mains, this doohickey also provides some limited, fixed adjustment of the output voltage (90 to 140 VAC, based on a nominal 120 VAC input) -- i.e., some of the functionality of a Variac, but with the added benefit of isolation. Variacs are variable autoformers, and as such do not isolate the load from the AC mains.

    hg4y755475wc.jpg

    The isolated outlets are rated for up to 350 VA at 140 VAC (350 VA is equal to 350 watts
    if the power factor of the load is 1).


    Come on now Doc....

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  • mhardy6647
    mhardy6647 Posts: 33,895
    Math give me hives, man.
    The irony being that our daughter's an economist and our son's a mathematician.
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  • verb
    verb Posts: 10,176
    mhardy6647 wrote: »
    Math give me hives, man.
    The irony being that our daughter's an economist and our son's a mathematician.

    Love math! :) And your rheostat! That brings back memories! Mark you got all the cool toys! :smile:
    ayr00bh7bayt.png
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  • mhardy6647
    mhardy6647 Posts: 33,895
    ain't that cool?! Picked that up at some fleamarket or another. Pretty serious variable resistor; if I had two, I think they'd be excellent in a crossover network :)
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  • jayman_1975
    jayman_1975 Posts: 672
    afterburnt wrote: »
    @jayman_1975 can you descibe the noise and how it makes you feel?

    My tv buzzes and so does my sub. I think the buzz in the sub is coming from the amp. It ticks me off.

    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
    · Share on FacebookShare on Twitter
  • jayman_1975
    jayman_1975 Posts: 672
    edited May 2019
    Clipdat wrote: »
    jayman_1975 wrote: »
    I ordered one today. Going to see if I can eliminate some of this DC noise coming from my house wiring.

    Don't you need something like this to combat DC on the AC? https://emotiva.com/collections/accessories/products/cmx-2

    Isn’t that what the ipurifier is supposed to be doing?
    Onkyo TX NR 5008 modified by The Upgrade Company
    Oppo BDP 93 modified by The Upgrade Company
    Arcam CD37
    Monitor Audio Gold GS 60
    Revolver Audio Music 5 towers.(surround)
    Vandersteen V2W
    · Share on FacebookShare on Twitter
  • mhardy6647
    mhardy6647 Posts: 33,895
    edited May 2019
    I don't think so (?) I thought they were for noise.
    https://ifi-audio.com/products/ac-purifier/
    Yes, the blurb seems to support the notion that they are noise filters of some sort.

    It draws from French military engineering. 'nuff said. :#

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  • afterburnt
    afterburnt Posts: 7,892
    Better than French social engineering.
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