this post was submitted on 23 Jan 2026
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Fun fact: there is no right or left channel in the RCA standard. One (white IIRC) is positive both channels and the other (red IIRC) is negative right. That way one is actually mono with both channels overlayed, to get stereo the system (tv, hi-fi, etc…) subtracts one from the other and then inverts the negative one for two channels.
Oh, cool! I always thought that there were channels and if you just plugged one it would just act as mono audio like some sort of fallback