autoswitching dac?

CHECK WWW.AUDIOADVISOR.COM
THET HAD SOMETHING LIKE THAT A WHILE BACK. I JUST CAN'T REMEMBER THE BRAND .I DON'T THINK IT HAD BALANCED OUTPUTS THOUGH. THE PEOPLE AT AUDIO ADVISOR SHOULD KNOW.

The Birdland Odeon Platinum may be close to what you are looking for.

Hello,
I think the Genesis Digital Time Lens might work this way too. It has an input for virtually every digital signal (Glass, BNC, AES/EBU, etc) and multiple outputs too. I am thinking it checks the inputs in a certain order and then uses the first input it finds active as the signal sent to the outputs.This would allow you to have multiple digital sources hooked up to the unit which could then drive one DAC.

MSB DACs can do this.