The cable lie is the biggest, most cynical, most intelligence-insulting, and above all, most fraudulently profitable lie in audio. The lie is that high-priced speaker cables and interconnects sound better than standard run-of-the-mill ones. It is a lie that has been exposed, shamed and refuted over and over again by every genuine authority under the sun, but audiophiles hate authority and the innocents can't distinguish it from self serving charlatanry.
The simple truth is that resistance, inductance and capacitance (R, L & C) are the only cable parameters that affect performance in the range below radio frequencies. The signal has no idea if it is being transmitted through cheap or expensive RLC. Yes you have to pay more than rock bottom to avoid reliability problems, 2.5mm2 multi stranded copper speaker cable and good quality phono-to-phono screened coaxial cable will suffice. In fact, in terms of basic electrical performance a nice pair of straightened-out wire coat hangers with the ends scraped is not a whit inferior to a £1000 "high end" cable.
The issue of cable burn-in is even more ludicrous, the cable will sound different after 50 hours because your ears have got used to a different sound, whether good or bad, not because of any change in the cable.
Ultra high priced cables are the biggest scam in consumer electronics the sooner this absurd emphasis on cables and the results they might achieve is stopped the better.