Popular Post barrows Posted April 13, 2019 Popular Post Share Posted April 13, 2019 See here, some objective information included: https://www.stereophile.com/content/do-power-cords-make-difference-compelling-demo-shunyata The first time I tried an aftermarket power cable (many years ago now...) I was a non-believer, but I was also open minded. I was entirely blown away that trying a single power cable could have a profound effect on my CDP alone... One can make fun all one wats, but the fact is, if one does not experiment with after market power cables, one is leaving system performance on the table. Same with a dedicated AC line as well... sandyk, mansr, 4est and 3 others 2 1 3 SO/ROON/HQPe: DSD 512-Sonore opticalModuleDeluxe-Signature Rendu optical with Well Tempered Clock--DIY DSC-2 DAC with SC Pure Clock--DIY Purifi Amplifier-Focus Audio FS888 speakers-JL E 112 sub-Nordost Tyr USB, DIY EventHorizon AC cables, Iconoclast XLR & speaker cables, Synergistic Purple Fuses, Spacetime system clarifiers. ISOAcoustics Oreas footers. SONORE computer audio | opticalRendu | ultraRendu | microRendu | Signature Rendu SE | Accessories | Software | Link to comment
Popular Post barrows Posted April 13, 2019 Popular Post Share Posted April 13, 2019 1 hour ago, The Computer Audiophile said: Can you or anyone explain how this works? Actually, they show a reduction in noise by just plugging the cable without it carrying any current (no component on the IEC end). This means the cable is acting as a parallel AC line filter, most likely it is the Capacitance of the cable operating as an RC filter in concert with the R (resistance) element of the AC line. There is nothing unusual or astonishing about how this works, parallel filter circuits can be quite effective. crenca and 4est 1 1 SO/ROON/HQPe: DSD 512-Sonore opticalModuleDeluxe-Signature Rendu optical with Well Tempered Clock--DIY DSC-2 DAC with SC Pure Clock--DIY Purifi Amplifier-Focus Audio FS888 speakers-JL E 112 sub-Nordost Tyr USB, DIY EventHorizon AC cables, Iconoclast XLR & speaker cables, Synergistic Purple Fuses, Spacetime system clarifiers. ISOAcoustics Oreas footers. SONORE computer audio | opticalRendu | ultraRendu | microRendu | Signature Rendu SE | Accessories | Software | Link to comment
barrows Posted April 13, 2019 Share Posted April 13, 2019 11 minutes ago, Ralf11 said: barrows - do you have any brands/models of AC power cords to suggest that people try? - esp. ones with a return priv. or 'rental' from one of the places renting cables BTW, I'd do a dedicated line long before a swap of AC power cords; a swap of DC power cords (to the DAC) before that, and an upgraded p/s to the DAC before that... I have not really sampled a lot of AC line cables, only a few, and I DIY (most of) mine. There are so many out there, and some of course, do make some rather extravagant claims. The Cable Company is the usual source for getting loaners to try if one does not have a brick and mortar dealer. I have used the various models from Cardas with good results, and they are more reasonably priced than many, and made in the USA with excellent build quality and no nonsense designs. I have also used Synergistic a little, they are very unusual, and actually have a circuit which injects some kind of noise into the cable. I do not understand how the Synergistic stuff works, but it does work. Perhaps the injected noise is working in a similar fashion to dither, I asked Ted Denney (owner of Synergistic) that question once, and he would neither confirm or deny it, likely just protecting his IP. I have no doubt that the Synergistic cables often do something good, but they are a little bit too spendy for me. Agreed on the dedicated line, if one can do it, one should certainly do this first. Of course one can have all kinds of fun tearing out walls, not to mention deciding what wire to run as they dedicated line! SO/ROON/HQPe: DSD 512-Sonore opticalModuleDeluxe-Signature Rendu optical with Well Tempered Clock--DIY DSC-2 DAC with SC Pure Clock--DIY Purifi Amplifier-Focus Audio FS888 speakers-JL E 112 sub-Nordost Tyr USB, DIY EventHorizon AC cables, Iconoclast XLR & speaker cables, Synergistic Purple Fuses, Spacetime system clarifiers. ISOAcoustics Oreas footers. SONORE computer audio | opticalRendu | ultraRendu | microRendu | Signature Rendu SE | Accessories | Software | Link to comment
barrows Posted April 15, 2019 Share Posted April 15, 2019 On 4/13/2019 at 5:49 PM, pkane2001 said: It has a built in filter network. A capacitor across the two wires will conduct RF, in effect creating a short for RF-induced frequencies. Maybe, or maybe the build of the cable just has a lot of Capacitance without having any added capacitors or resistors. For example, a star quad cable geometry increases C over a single twisted pair. The AC line itself has enough R to be a factor at very high noise frequencies. SO/ROON/HQPe: DSD 512-Sonore opticalModuleDeluxe-Signature Rendu optical with Well Tempered Clock--DIY DSC-2 DAC with SC Pure Clock--DIY Purifi Amplifier-Focus Audio FS888 speakers-JL E 112 sub-Nordost Tyr USB, DIY EventHorizon AC cables, Iconoclast XLR & speaker cables, Synergistic Purple Fuses, Spacetime system clarifiers. ISOAcoustics Oreas footers. SONORE computer audio | opticalRendu | ultraRendu | microRendu | Signature Rendu SE | Accessories | Software | Link to comment
Popular Post barrows Posted April 15, 2019 Popular Post Share Posted April 15, 2019 10-4, one thing to be aware of is how a filter network might, or might not, interact with the component it is plugged into. Quite a few audio components have such a filter built in at their AC input; depending on parts values, filter networks like these joined together from AC cable to component can have bad interactions (resonances) sometimes. Given this possibility, I suspect that the use of these cables with some components may produce undesirable results. I would suggest anyone trying a cable like this with a built in filter, to try before before they commit to purchasing. The same holds true for most passive line conditioners, although to a lesser extent (as the filter networks are going to be somewhat damped by the resistance of the power cable). Ideally, the AC line, power conditioner, power cable, and component would be considered as a Network, and designed to work together to provide whatever filtering effect is necessary for best performance, but of course, in most cases, this is not possible. These kind of interactions are likely responsible for the variable success of power cables, and line conditioners in different systems and with different components: always remember that the AC line, AC conditioner, power cable, and the AC input circuit of a component is a system, and everything needs to work together copacetically to produce good results. Just because a reviewer might give power cable A an amazing review, does not necessarily mean it will have the same result in your system. Paul R and elcorso 1 1 SO/ROON/HQPe: DSD 512-Sonore opticalModuleDeluxe-Signature Rendu optical with Well Tempered Clock--DIY DSC-2 DAC with SC Pure Clock--DIY Purifi Amplifier-Focus Audio FS888 speakers-JL E 112 sub-Nordost Tyr USB, DIY EventHorizon AC cables, Iconoclast XLR & speaker cables, Synergistic Purple Fuses, Spacetime system clarifiers. ISOAcoustics Oreas footers. SONORE computer audio | opticalRendu | ultraRendu | microRendu | Signature Rendu SE | Accessories | Software | Link to comment
barrows Posted April 15, 2019 Share Posted April 15, 2019 2 hours ago, gmgraves said: I strongly urge everyone who is reading this thread to read what Mark Waldrep (Dr. AIX) has to say about this subject. While reading it, keep in mind the old adage: "A chain is only as strong as its weakest link" http://tinyurl.com/yycypm3h He did not say anything, he merely re-posted a letter from a "bona-fide electrical engineer", wow, I am so impressed! 4est 1 SO/ROON/HQPe: DSD 512-Sonore opticalModuleDeluxe-Signature Rendu optical with Well Tempered Clock--DIY DSC-2 DAC with SC Pure Clock--DIY Purifi Amplifier-Focus Audio FS888 speakers-JL E 112 sub-Nordost Tyr USB, DIY EventHorizon AC cables, Iconoclast XLR & speaker cables, Synergistic Purple Fuses, Spacetime system clarifiers. ISOAcoustics Oreas footers. SONORE computer audio | opticalRendu | ultraRendu | microRendu | Signature Rendu SE | Accessories | Software | Link to comment
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