If you're looking to power your BluRay player or other high-end audio or video equipment, you'll probably want to use a 50 Ohm Coaxial Cable. This standard is the most effective in moving signals without losing energy. In fact, 50 Ohm coaxial cable is the industry standard for such equipment.
Coaxial cables are available in several different impedances. The most common ones are 50 and 75 Ohm. Other types of coaxial cables are used for video and antenna transmission. In addition to these two common impedances, there are also impedances in the range of 32 and 124 Ohms. Most appliances use 50 Ohm Coaxial Cables for power and voltage signals.
These cables are made of copper or copper clad steel center conductors. They come with larger connectors and are thicker than other cables. Because they are thicker, 50 Ohm cable is a bit more difficult to run than 75 Ohm cable. Despite this, 50 Ohm cables do have their advantages.
