MOTM

Perhaps check out the Analog Devices SSM 2143 Balanced line Receiver and SSM
2142 Balanced line Driver separately or in combination. I have started
experimenting with these recently with good success. Common Mode rejection is
very high and the audio specs are quite good. I just picked up a batch of 2143
from allied for about $3.50 each. I will report more later as things progress.
Charles.