Power strip for my new dedicated lines?

Discussion in 'Audio Hardware' started by WvL, Jun 5, 2021.

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  1. Lowrider75

    Lowrider75 Forum Resident

    Location:
    Philadelphia, PA
    I agree with this. I live in an old Philadelphia neighborhood, pre war rowhome, all sharing a transformer.
    My Equi=Core 1800 + DeepCore does wonders for removing noise from outside (I won't call it the grid) and lowering noise from other circuits and devices in the house.
     
    h1pst3r88 likes this.
  2. MarkD51

    MarkD51 Audio Maniac

    Location:
    Chicago Illinois
    Line mentioned, there's a lot more to it than just that. All a dedicated circuit might bring is better current supply to a power hungry system. Some noise might be lowered, since that line isn't also powering your Fridge, or other things.
     
  3. rednedtugent

    rednedtugent Forum Resident

    Location:
    Funk, Ohio
    I'm not sure I'd buy one. If you do, please report out.
     
  4. MarkD51

    MarkD51 Audio Maniac

    Location:
    Chicago Illinois
    I understand Hospital Grade Receptacles aren't actually the Cat's Meow either. They usually have a anti-corrosion Plating on all the contacts. Sure, better than some cheap run of the mill, but I understand regular Spec Grade Outlets from Hubble are better.
     
  5. Lowrider75

    Lowrider75 Forum Resident

    Location:
    Philadelphia, PA
    Yes balanced power is 120/240 from the pole. The line to the audio is 120, the EquiCore splits the signal into + and - , and separates the ground.
     
  6. Ingenieur

    Ingenieur Just a dog looking for a home...

    Location:
    Back in PA
    That would be extremely easy to prove, and yet no tests, not even from Stereophile who has an expert in test and measurement.
    Measure the wall and power strip outlet at the same time and do a differential.
    If no difference, it makes no difference.
    So easy
     
    big_pink_floyd_toole likes this.
  7. rednedtugent

    rednedtugent Forum Resident

    Location:
    Funk, Ohio
    I bought the PS audio plugs when on sale, but they aren't being used on the power line I'm talking about.
    If I get a new line pulled I'll probably get Hubble. Thanks for bringing out the point.
     
  8. Uglyversal

    Uglyversal Forum Resident

    Location:
    Sydney
    [​IMG]
     
    mr.datsun, 4-2-7, h1pst3r88 and 8 others like this.
  9. Lowrider75

    Lowrider75 Forum Resident

    Location:
    Philadelphia, PA
    That's the benefit of a dedicated line. If the audio is on a separate leg as appliances, their noise is reduced but not eliminated. But it is possible it won't be audible.
     
  10. WvL

    WvL Improve the lives of other people Thread Starter

    Location:
    Birmingham al
    Perfect! THANK YOU...No further discussion required :laughup: :laughup: :laughup:

    My wife even gave that a thumbs up
     
    Last edited: Jun 7, 2021
    4-2-7 and Uglyversal like this.
  11. WvL

    WvL Improve the lives of other people Thread Starter

    Location:
    Birmingham al
    I just didn't want it to share a circuit with other crap from appliances etc. And now was the perfect time to do it
     
  12. Glmoneydawg

    Glmoneydawg Forum Resident

    Location:
    Ontario Canada
    Now that is efficient use of a wall socket :)...with a side order of Tetris
     
    WvL likes this.
  13. zeppage2

    zeppage2 Forum Resident

    Location:
    Oakland, CA
    I can't think of anything that would not need its own dedicated circuit other than this.

     
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  14. Ingenieur

    Ingenieur Just a dog looking for a home...

    Location:
    Back in PA
    This is how they bamboozle people. I saw a video that $$$ power cables are better than the ones that come with the gear.

    They used an available short circuit current tester. Works like this:
    Plug into wall, measure no load V, say 120
    Push a button and a known load is shunted across the V, say 6 Ohm
    It measures V and I across/thru load
    Assume V= 117.6, I = 19.6 A
    We know we have an additional 120-117.6 = 2.4 V drop from the xfmr to receptacle.
    So circuit Z = 2.4/19.6 = 0.1224 Ohm
    If a bolted fault I = 120/0.1224 = 980 A

    He tested it at 3 points (not sure of the numbers but this will illustrate the point);
    Receptacle 1000 A, circuit Z ~ 0.12 Ohm
    $$$ cord 900, 0.1333 Ohm, cord 0.133 Ohm
    Cheap cord 800, 0.15 Ohm, cord 0.03 Ohm

    That 'proves' the cheap cord chokes the amp.
    That is 96,000 VA or 48,000 W from the cheap cord.

    If you don't understand this (and that is ok) you may think this actually means something.
    It is meaningless in this context.
    I do not like engineering being misused to sway buying decisions. It is unethical.

    I share my opinions. Take them or leave them.
    I'm done with this topic/thread.
    If you have questions, PM, many do.
     
    Shawn likes this.
  15. Ro-Go

    Ro-Go Forum Resident

    Location:
    Hudson Valley
    ZeroSurge, Brickwall or SurgeX -- accept no substitute.
     
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  16. Tony C.

    Tony C. Forum Resident

    Location:
    Portugal
    Several months ago I went from a basic power strip to a used Isotek EVO3 Sirius:

    EVO3 Sirius - IsoTek – The Power To Perform

    I paid about half the retail price, so ~$400. Perhaps some will ridicule my having spent so much, but it made a noticeable difference in the noise floor, and, while I can't rule out conformation bias, other aspects of the sound produced by my stereo. Also, it made a shockingly big difference in the quality of the (DVD) video that my old, but high-end Pioneer BDP-LX91 was producing.

    Perhaps there was some kind of cross-contamination in the basic strip. Would a cheap "good" strip have had the same impact as the Isotek? I dunno, but I'm happy with the result. I should add that the unit seems to be very well made.
     
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  17. big_pink_floyd_toole

    big_pink_floyd_toole I am not a bat

    Location:
    USA
    You should buy two so you have a backup
     
  18. Ingenieur

    Ingenieur Just a dog looking for a home...

    Location:
    Back in PA
    Plug one into the other, double cleaning power. :)
     
    Shawn and VinylSoul like this.
  19. jupiterboy

    jupiterboy Forum Residue

    Location:
    Buffalo, NY
    Zero Surge

    EMI/RFI Filter Response (50 ohm Rgen., load) Bi-directional, wave tracking
    β€” 3 dB @ 7 kHz; 25 dB @ 100 kHz; 38 dB @ 300 kHz
     
  20. WvL

    WvL Improve the lives of other people Thread Starter

    Location:
    Birmingham al
    Would that really work? :D
     
    Ingenieur likes this.
  21. Ingenieur

    Ingenieur Just a dog looking for a home...

    Location:
    Back in PA
    The Furman PST 8
    -40 dB at 10 kHx
    -80 at 100 kHz

    estimated:
    10 to 100 kHz ~ 3.25 octaves, -12 dB/oct
    -28 dB at 5 kHz
    - 16 at 2,500
    -4 at 1,250
    Flat below 1,000

    for reference 30 dBV is 97% attenuated

    honestly if it attenuates > 100 kHz that will get RFI
    [​IMG]
     
  22. Ingenieur

    Ingenieur Just a dog looking for a home...

    Location:
    Back in PA
    Lol
    No difference
    After the first one the RFI is essentially eliminated.
    And even before the first one moot imo
     
  23. It’s like when people say CDR copies sound better than the pressed disc they were copied from. If that was true, copy the CDR, then make a copy of that, and so on and so on - can you imagine the jump in audio quality after doing that five times? :D
     
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  24. jupiterboy

    jupiterboy Forum Residue

    Location:
    Buffalo, NY
    Here's my point, it may not be the best on paper but I've had MOV devices with noise filtration for decades and they slowly degrade and become additive in terms of noise. If you watched that video where the guy tested his old Panamax unit the outs on that were worse than direct from the wall. I don't think they start out that bad, but whatever wears out and goes out of spec very slowly gets worse. Furman may be better, but I'm going with a non-MOV device. Now I have heard that some MOV devices now have a way of notifying the user as they become used up so you can replace. That's a good development.
     
    rednedtugent and Shawn like this.
  25. G E

    G E Senior Member

    I'll look into it.

    I do know the hospital outlets still have a tenacious grip after 20 years of use. And that's with me unplugging if thunderstorms are forecast. We've had some close strikes: took the top off one of our trees 40 feet from the house, next door neighbor had a glancing hit, holes melted in their gutters and downspout! Even though fully insured, I'd rather not go through all that.
     
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