Sound Output jack. Isn that two-channel sound?
Nope; and, it is not “stereo” either. The jack is a standard stereo jack; but, the “Left” and “Right” outputs are connected to a single ‘composite’ source. Possibly, Apple originally intended to supply two-channel sound; perhaps, the idea was just to simplify connections to stereo systems. (Stereo devotees get upset when you give them just one ‘channel’ to plug in.) Whatever, the fact remains: for multi-channel output you need to add a “stereo board”.
