Alpha v2 NR vs Sigma v2 NR

ack said:
You may not have seen the plating?
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But he knows everything about Shunyata products and acts as a spokesperson for Shunyata on numerous audio forums. Surely he knows what he is talking about.
 
If you want a little better performance, you can shield those TAP modules in the Alpha (and higher) interconnects with the 3M AB5100 self-adhesive material I am using everywhere, or with carbon fiber cylinders as in the Omega (but you have to buy custom cylinders).

Here are a couple of pictures of my cables, whereby the AB5100 is also covered with TechFlex to hide the uninviting optics of the shields. In the forefront is the MIT MA-X phono cable, which has also been heavily shielded; the back of the amp also shows carbon fiber sheets being used for shielding

cables-IMG_7210.JPG

cables-IMG_7207.JPG
 
I just bought a pair of Delta v2 NR power cables. So now I have Sigma v2 NR, Alpha v2 NR and Delta v2 NR power cables. I've installed the Delta's on my Halcro monoblocks, replacing a pair of very old PS Audio Prelude xStream power cables which I bought in Hong Kong about 22 years ago. I was contemplating using the Delta's on my Esoteric C1X (which uses two power cables) to replace Audioquest NRG-4. But I decided on using them with the power amps because that was a one minute swap whereas the C1X power cable swap would be far more time consuming and I just don't have the motivation to go to the effort to break open a massive loom of cables behind my rack.
 
...10 minutes later....

Good grief, these Delta's absolutely smoke the PS Audio Prelude power cables! The Everest was a bit of a disappointment when I first plugged the power amps into it. I didn't hear any improvement at all. But these Delta's have yielded a much bigger improvement over Everest.
 
brodricj said:
...10 minutes later....

Good grief, these Delta's absolutely smoke the PS Audio Prelude power cables!
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Funny how that works…

You get even more improvement with Alpha NRv2 or Sigma NRv2 PCs. Especially when used with amplifiers…
 
I'm left to wonder what design characteristic of the Shunyata power cables brings the advantage here. I wouldn't have thought cable NR as it would only be a small fraction of the Everest NR. I wouldn't have thought DTCD as the power supplies in the power amp are so massive that any transient current delivery of a power cable would be moot in comparison. The CopperConn connectors. Maybe, but the metal in the PS Audio power cable connectors is substantial, more so than the Shunyata in terms of surface contact area. I'll try not to think about it. Maybe the Grandioso C1X would also benefit from a power cable upgrade.
 
brodricj said:
I'm left to wonder what design characteristic of the Shunyata power cables brings the advantage here.I'll try not to think about it.
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For amps, it’s primarily DTCD. The current delivery is a key “functional response” as we say in Six Sigma.

For components using FWBR (Full-Wave Bridge Rectification) power supplies, the CCI-x v2 NR functionality also plays a key role.

Maybe the Grandioso C1X would also benefit from a power cable upgrade.
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Oh, yeah…
 
well, there is a balance of how much and where you want to suppress noise.
shunyata is a bit of a broadband-antibiotica and can sound backwards. as for usb and ethernet, i do find omega very good. regarding powercords, my recommendation would be the delta 2nr. Excellent cable, very balanced. The models above are too much of a construction.
My favorit is to combine shunyata for front end with nordost for amplification and speakers.
 
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