Listen, we're talking about electricity. One of the primal forces of the universe. A rampaging storm of destruction hurtling down a conductor only a few millimeters wide. After a few years a speaker cable is a molten pile of slag and has to be replaced. You've heard of the Tunguska event? That happened when someone didn't replace his speaker cable in time and containment was breached. Luckily that was before NEC codes and plenum ratings so it can't happen again
