hi Bruce, your idea will work but you will need some sort of attenuation on at least one side of your amplification since balanced has 'about' 6db more gain. there are very simple attenuators that can be placed between your interconnects and amps that will do the trick but i can't remember the name of them.....hopefully someone else can.
the output strength of the Capitole should be able to handle both 'legs' at the same time.
the output strength of the Capitole should be able to handle both 'legs' at the same time.