Ratshack or Acoustic Research are your best bets. Jitter can be an issue especially with Toslinks, but since your receiver does DTS it will have a decently large input buffer that should make ...
It was once the most high-tech and futuristic feature you could find: Transmit sound -- with light! Lasers! A cable not of copper, but glass! Except, it was almost never glass, and was usually ...