> To multiplex audio for stereo generation you have to have tight, clean
> switching.

Why ? Stereo is sent as L+R and L-R. L-R is L+R-2*R. This requires just
one switch and the insulation need not be so good as it can be compensated
for by adjusting the gains (of the straight R and of the -2R separately).
What am I missing ?

Peter

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