Which audio cables are better – RCA or optical?
again like everyone else RCA is only 2 channel stereo wile the optical gives you the full 5.1 (so does the digital coaxial, you can use one of the red or white rca cables to go from the appropriately labeled “digital coax” or “spdif” its usually orange or black) so ultimately you could get a cheaper video card with just a digital coax, its one step below the optical. but if you have the money… just get the optical card and cable. and sidenote- HDMI and optical are not the same, they now have this “HD audio” on alot of blu-rays that will only be carried by hdmi and recognised by “HD audio” ready players and recievers.
