This must be BS or a regional thing. All the RCA ports I've seen in North America are labeled L and R, not L+R and L-R.
I use those on my speakers and I can flip left/right stereo if I flip the cables. I think that confirms that they don't have both in one I think.
It's possible that it might only be a thing in PAL regions - I'd try, but I don't have anything that uses composite to try now.
I can confirm that everything that uses component and L/R that I have used in my life (born in 2001 in the Netherlands, so PAL) has separate L and R channels. I have confirmed this with my multimeter before.
This must be BS or a regional thing. All the RCA ports I've seen in North America are labeled L and R, not L+R and L-R.
I use those on my speakers and I can flip left/right stereo if I flip the cables. I think that confirms that they don't have both in one I think.
It's possible that it might only be a thing in PAL regions - I'd try, but I don't have anything that uses composite to try now.
I can confirm that everything that uses component and L/R that I have used in my life (born in 2001 in the Netherlands, so PAL) has separate L and R channels. I have confirmed this with my multimeter before.