Are manufacturer AC cables good enough?

Yes they are good enough for most use.

But 500$ cables makes significant difference if your system is revealing.

I had tried 2k$ power cable in my system.

It makes sound slightly more refined and detailed than 500$ Synergistic Blue power cable.

But I am not willing to pay 4 times of money especially I need around 10 power cables.

Analysis plus also make decent cable at around 500$ which sound more relaxed while Synergistic blue sound more detailed.

Thomas

rodman99999Never said gravity couldn’t be explained. The amount of gravity, throughout this universe, has not yet been explained. I cited a number of the theoretical attempts at an explanation. Jones brought up Einstein’s Cosmological Constant. I mentioned it sought to account for the amount of gravity, throughout this universe. He added that, in his Math, believing in a stationary universe, in keeping with that time’s understanding of Physics. Anyone, with even a minimal grasp of Einstein’s General Relativity, would have understood that point. 

>>>>That’s all very exciting. Please keep us posted on any developments or breakthroughs. 🙄

Again;  The hypothesis is (whatever the particular wire, tweak, etc); that a change (good or bad) can be heard.        The naysayers propose (perhaps, project), that, "audiophiles" are too ignorant, inept or deaf, to make a change, in their systems, listen to it and determine if it (whatever it is) makes enough difference, to them, to purchase (a simple experiment).       Without a knowledge of the root, which births such hubris, one could almost get offended.      ie (the root):     https://www.britannica.com/science/Dunning-Kruger-effect

Well most of universe is a very very far distance away making measurement a bit difficult unlike our audio systems.  We don't know if our gravity equations are wrong, or our measurement of matter is wrong.

We used to think that E = 1/2 m * v ^2, was totally accurate, and for most practical purposes, it is more than accurate enough. Audiophiles or at least audiophile marketers attempt to create reasons that would actual be pretty easy to measure within the limits of any necessary accuracy, whether we understand "everything" or not, and then make excuses about why they can't be measured and attribute that to this global "well we don't understand everything".  They don't even try to reconcile their claims with what we do know, let alone the things they claim we do not.

Never said gravity couldn't be explained.    The amount of gravity, throughout this universe, has not yet been explained.    

The naysayers propose (perhaps, project), that, "audiophiles" are too ignorant, inept or deaf, to make a change, in their systems, listen to it and determine if it (whatever it is) makes enough difference, to them, to purchase (a simple experiment).

I am the one who is accused of being inept, ignorant and deaf not to mention a troll etc.. for simply pointing out "audiophiles" are human and subject to the same biases as all of us , including me. Acknowledging this it only makes sense to try and negate these biases as much as possible when making claims of HUGE improvements in the sonic abilities of amplifiers etc..power cords, which are fairly well understood passive electrical devices.