In the home theater space most people would tell you the age of optical audio, known officially as TOSLINK ... intended for a digital-to-analog converter (DAC) from HiFiBerry.

What just happened? Two hackers have successfully extended the range of Toslink optical audio cables, enabling data transmission over unprecedented distances. While the practical applications may ...

The Shanling CR60 provides CD playback and ripping capability for a very reasonable $299, but it requires an external DAC.

On the hardware side, [Paul] has posted up his adapter board for a cheap, but very professional looking, optical TOSLINK sender. But if you’re feeling ghetto, you can simply use a red LED ...