RCA Coaxial V Optical Cables?

[kmhtkmhtkmht]

I am wondering what gives a better sound quality, a RCA Coaxial Cable or Optical Cables?

I am buying a YSP-1 and trying to figure out how to connect the PC's sound to the YSP-1, and The speaker supports both the Coaxial and Optical inputs and so does my soundcard that can output on a Coaxial or Optical.

Which connection will result in better sound?

FYI:
Soundcard:
http://www.atruereview.com/bluegears/index.php

Back of Speaker:
http://www.newegg.com/Product/Showim...ector+-+Retail

[MarkE19]

There is pratically nothing between them! In theory coax should be better on a short run as there is less conversion to the signal. Optical should be used on long runs though as it is not going to pick up any interference.

Mark.