I wonder how hard it would be for Audiocubics to modify their external remote volume control to handle L/R balance instead of Up/Down.
Might be worth checking in with them:
http://www.audiocubics.com/http://www.audiocubics.com/specs.html
Might be worth checking in with them:
http://www.audiocubics.com/http://www.audiocubics.com/specs.html