The best results will be to find the right cable between the pre-amp and the amp and the right wire between the amp and the speakers. Why? Because no matter which source you select, the signal will travel over this path. Next, find the right cable from your most frequently used to least frequently used source. Oh, and make sure your system is properly grounded: it's far more important that which cable or wire you use. See my system page for more information on grounding.
Finally, don't spend too much money on cables and wires as system components are far more important to the sound of your system. Cables and wire are like seasonings - they can enhance a meal, but never be the meal.
Finally, don't spend too much money on cables and wires as system components are far more important to the sound of your system. Cables and wire are like seasonings - they can enhance a meal, but never be the meal.