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  1. #51
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by The Bodiezaffa View Post
    Hey there.

    I have 4 PS Audio Power Ports. Each port (2 receptacles) is connected to its own 20 amp line.
    Just be mindful of the fact that a "dedicated line" only functions to provide maximal current during dynamic passages. Unless a dedicated line is isolated by being run in metal conduit, it is still susceptible to the impact of RF and EMI, and the length of AC wiring run through walls to a wall receptacle makes if a really effective antenna for picking up RFI and EMI*. Also be mindful that much of the noise in an audio system comes from the full-wave bridge rectifiers in the power supplies of the components themselves.

    Lots of folks still think that the AC "flows" from the wall receptacle in only one direction from the wall -> to the component. This is absolutely not true: it's AC...alternating current; the current ALTERNATES in BOTH directions, and in the USA, at 60 times/second. It is not like water flowing through a hose from a faucet to a sprinkler. The current goes BOTH ways: into the component and...back OUT of the component. And during dynamic passages not only can there be reactance on the AC mains when the rectifiers pull hard on the AC mains, resulting in LESS current than required rather than more, but when the power supply's rectifiers snap shut afterwards, they can send transient noise out of the component's power supplies. This noise travels back out of the component to source components "upstream" of say, the amp or preamp, because...it's alternating current. This is why it's very helpful to have a noise reduction filter on the end of the power cord that connects to the component's IEC receptacle that prevents these noise components coming back out of the components' power supply to contribute noise to the upstream source components. Dedicated lines do nothing to prevent this.

    * – videos I made documenting with data the amount of RF on the AC wiring in our homes.

    Shunyata Research Venom 14 Digital power cord demonstration - YouTube

    V14D Demo Part 2 - YouTube

  2. #52
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by Puma Cat View Post
    Just be mindful of the fact that a "dedicated line" only functions to provide maximal current during dynamic passages. Unless a dedicated line is isolated by being run in metal conduit, it is still susceptible to the impact of RF and EMI, and the length of AC wiring run through walls to a wall receptacle makes if a really effective antenna for picking up RFI and EMI*. Also be mindful that much of the noise in an audio system comes from the full-wave bridge rectifiers in the power supplies of the [I]components themselves.
    Stephen...if only we were mates during construction.
    So, since Im not breaking drywall, is there any solution at panel end or after receptacle I should consider... that doesn't cost an arm or leg?
    Mark-
    Krell Evolution Series 302e amp / Krell Evolution 202 Pre Amp / Auralic Aries G1 music server / MSB Analog DAC / Sonus Faber Amati Futura speakers / Bryston BIT20 power conditioner / Symposium Svette Plus Isolation Platform / Stillpoints Ultra 5's and Apeture panels/ Shunyata Altaira Chassis Ground with Alpha Cables/ Wireworld Silver, Gold and Platinum Eclipse cables

  3. #53
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by The Bodiezaffa View Post
    Stephen...if only we were mates during construction.
    So, since Im not breaking drywall, is there any solution at panel end or after receptacle I should consider... that doesn't cost an arm or leg?
    Hey Mark,
    I can't define for you what "cost an arm or leg" means, but the most effective ways to mitigate the impact of various noise components from AC mains to components, and back is to use a NR power cord for the components and an NR power distributor from the wall AC mains, and powering the components in the system. That provides NR for "both" directions, coming IN to the system components and concomitantly, back OUT of the component power supplies.

    The little videos I made demonstrate with data the effectiveness of even the entry-level Venom V14 NR power cords at the "back end" (i.e., the component end). You'll get the same benefits, to a larger magnitude, using their power distributors at the "front end". Even Shunyata's entry-level PS10 power distributor, which sells for $900, provides something like -24dB of noise reduction. That's not insignificant, in fact, it's about the same magnitude of NR that was provided by their $5000+ Triton v1 back in the day. For 900 bucks. In fact, I use the little PS10 as the power distributor for my home theatre system and the Venom NR v14 for my HDTV, and you can see visually the improvement it provides by the increased video quality: "blacker blacks" (which you can see with your own eyes), more saturated, natural color and improved resolution, as well as improved hi-def audio.

    So, I would get best-spec Shunyata power distributor you can afford, and the highest-spec NR power cords you can afford; at the very least for the power amp, preamp and DAC. For example, the Venom V10 NR power cords are excellent for this application. If you have the budget for the Venom V16 power distributor, get that. Each bank is fully isolated from the other, so you could use one bank for home theatre and the other bank for the stereo system, for example. It also provides a GP-NR terminal so you can connect an Altaira ground-plane noise reduction hub to it if you decide to get one.

    Over the years, I've tried various, but not all, AC power distributors and power cords and found Shunyata's to provide the best performance in my system. I use their products quite simply because...THEY WORK. Furthermore, they are durable; i.e., they work and...don't break. It's the exactly same reason I use Snap-On tools when working on my sport bikes or shot with Canon pro bodies and lenses for motorsports photojournalism for many years: they work and don't break. Cheers.

  4. #54
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by Puma Cat View Post
    Hey Mark,
    It's the exactly same reason I use Snap-On tools when working on my sport bikes or shot with Canon pro bodies and lenses for motorsports photojournalism for many years: they work and don't break. Cheers.


    I've been using Snap on tool since the early 70's and I still have all of them. Had a few ratchets replaced, under warrant but heck they were 70's. But we all know, It's all about the Snap On calendars man. If you've seen one, you know why the tools sell.
    2chl : Vincent Sp331MkII, W4S STP-SE Stage 2, Kef 201/2, KEF 140, Vapor Breeze, Lumin, Bryston CD, BHA-1, Quicksilver Headamp, HD650, HD800s, HD820's, Dan Clark 1.1, Focal Stellia, OPPO 203, 105. ( Boxed up: Pass Xa-30.5, VPI Classic, Dynavector DV-20XL, Manley Chinook, Cadenza Bronze)

  5. #55

    Re: Your opinion on my weakest link.

    Quote Originally Posted by The Bodiezaffa View Post
    I know little about room correction but from what ive read, its not a well liked option. Too many downsides for little upsides.
    You must be reading about DSP in the wrong places. Paraphrasing the Oldsmobile commercial: today's DSP is not your father's DSP. The cost-benefit analysis of properly-done DSP compared to fancy cables/cords/etc is way superior.

  6. #56
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    Winter Haven, FL
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by nicoff View Post
    The cost-benefit analysis of properly-done DSP compared to fancy cables/cords/etc is way superior.
    Who said anything about that? What I saw about cables was about reducing noise in the system.

    What I always recommend is getting the room physically acoustically treated first along with a couple of properly placed and tuned subwoofers. Then, if you still feel further tweaking is necessary beyond the scope of the room treatments and subs, then use DSP as a last resort.
    Pass Labs XP-20 | Auralic Altair G1 | Odyssey Audio Stratos Monoblocks | JVC XL-Z411 | Nakamichi DR-1 | Technics SL-1700MK2 | Magnepan 1.7i | SVS PB-1000 Pro x 2

  7. #57
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    Richmond Hill, Ontario, Canada
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by Puma Cat View Post
    Hey Mark,
    shot with Canon pro bodies and lenses for motorsports photojournalism for many years: they work and don't break. Cheers.
    Hey Stephen...luck shot! lolol.
    Mark-
    Krell Evolution Series 302e amp / Krell Evolution 202 Pre Amp / Auralic Aries G1 music server / MSB Analog DAC / Sonus Faber Amati Futura speakers / Bryston BIT20 power conditioner / Symposium Svette Plus Isolation Platform / Stillpoints Ultra 5's and Apeture panels/ Shunyata Altaira Chassis Ground with Alpha Cables/ Wireworld Silver, Gold and Platinum Eclipse cables

  8. #58
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    Re: Your opinion on my weakest link.

    Quote Originally Posted by The Bodiezaffa View Post
    Hey Stephen...luck shot! lolol.
    Heheheh...actually, I shot with professional creds for over 15 years; used to nail this kinda stuff all day long...

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