Originally Posted by adhoc
No, but that's the problem - power cables carry no music. Unless they're acting as a antennae for RFI, you cannot improve wall AC. Or 'tune' wall AC like you can (purportedly) do with interconnects.
IMO as long as the gauge is generous, the connectors secure and the shielding sufficient, anything else is just the placebo effect at work.
Do note though that quite a bit of 'stock equipment' doesn't fit the previous 3 criteria!
Without power the component doesn't work and there will be no music. It's like trying to drive a car without any gas.1)
The gauge makes a huge difference. Thick cable makes music sound thick and slow, thin cable makes it sound thin, fast and detailed.2)
With more shielding the background gets blacker with more low-level resolution.3)
Connectors make it edgy and bright, hardwiring is the way to go.4)
With lower dielectric it sounds smoother with more transparency and bigger soundstage. Polished conductor surface does the same.5)
Deeper silver plating gives greater dynamics.
You can build a cheap cable for steps 1-3 above, but steps 4-5 are very hard to do, that's why I buy Valhalla.
A 60Hz sine wave isn't the most effective way to feed the power supply, you need to further manipulate it with MultiWaves (PS Audio
). I have gone from 60Hz -> 90Hz -> MWave1 -> MWave4 and each step made the same difference as a power cord upgrade. I found that MWave4 + Valhalla + Toroidal transformer is a perfect match.
Without the smoothness from Valhalla it isn't possible to listen to my system, it's pretty obvious from my blind test