andrei_nz134 posts03-05-2020 9:56pmDude, these are the basics. 1. You need sufficient gauge. 2. Good quality termination (ie strong set-screw contact). 3 Decent materials. Copper or silver (don't get distracted by 'nines' or other snake oil). 4. They really should be flexible. There is truly no excuse for for the inflexible cables.
I just saw cables that have all types of materials used in construction, they are not flexible, they are expensive, they work VERY well.
What is "nines"? Like dressed to the nines?
If you think about WHY cable is flexible, it is because of the LOOSE weave, size of the conductor and the flexibility of the jacket(s).
Why should it be flexible, like in car audio, WHY. The conductors are large, and very flexible. ALU clad wire, most of it. Other than easy install, there is no reason. Home is another, WHY? Again it doesn't have to be. I've seen a few systems hardwired with LONG runs. Amazing sound, solid conductor silver wire (romex like), and valve amps..