This thread is quite interesting and has many posts with a variety of opinion, theories, pseudo science regarding electrons, and marketing material regurgitation. Also some good advice, reflection, and reputable electrical science.
I believe cables do make some difference.
They cannot compensate for or correct most electrical utility problems - how can the composition of 6 feet of wire reconstruct perfect 120 volt 60 Hz electricity after its being distorted and affected over hundreds of miles from the generating facility, utility switchgear, local industry and transformers, neighbors with unusual electrical loads, possible poor grounding bonds in the home service panel, and the cheap 14 gauge wire and 25 cent receptacles in typical modern homes.
A power cable with good conductors and contact, sufficient wire gauge, and excellent shielding can however maintain voltage level and keep the power from being corrupted by EMI/RFI at its most vulnerable - the lowest voltage end of the line state.
It is a question of not allowing it to get any worse from the wall to the component. If you are also using a good conditioner or regenerator, then the PC from there to your component is many multiples more important as you are removing many other potential effects and keeping the AC pure is far more possible.
Good conductors of sufficient gauge, good contact surfaces, excellent shielding. That will make a difference.
I believe cables do make some difference.
They cannot compensate for or correct most electrical utility problems - how can the composition of 6 feet of wire reconstruct perfect 120 volt 60 Hz electricity after its being distorted and affected over hundreds of miles from the generating facility, utility switchgear, local industry and transformers, neighbors with unusual electrical loads, possible poor grounding bonds in the home service panel, and the cheap 14 gauge wire and 25 cent receptacles in typical modern homes.
A power cable with good conductors and contact, sufficient wire gauge, and excellent shielding can however maintain voltage level and keep the power from being corrupted by EMI/RFI at its most vulnerable - the lowest voltage end of the line state.
It is a question of not allowing it to get any worse from the wall to the component. If you are also using a good conditioner or regenerator, then the PC from there to your component is many multiples more important as you are removing many other potential effects and keeping the AC pure is far more possible.
Good conductors of sufficient gauge, good contact surfaces, excellent shielding. That will make a difference.