[Elecraft] K3 LINE Out mixes KRX3 and main output?

[Leigh L. Klotz, Jr WA5ZNU]

Is it possible to control whether the sub rx goes to the line out or not?
It seems that both main and sub rx are always going to line out; I guess 
they're on left/right channels?
If not, I guess I need to make a cable to cut out one channel so I don't 
see both with my mono sound card line input.
Leigh/WA5ZNU
K3#51, K2#3121, KX1#712