Thanks for the prompt answer..
I`m currently using a rotel rsp1069 as an av processor and dac for the squeezebox.
Will a squeezebox + the Icon uDac be an upgrade to my current squeezebox + rotel DAC. I think the rotel sits somewhere in the middle between an entry level DAC like the Udac, and the DAC9.
Am i right?
Since I am not familiar with that AVR, or its sound, I wouldn't be able to tell you.
Since the uDAC is purposed for 2 channel audio, and is a "direct" path and newer component, I doubt it is below the Rotel chipset, but how much difference you would hear between the two, I can't say.
I anticipate the DAC-9 will offer the real improvement that (depending on the resolving power of your system) you will be able to clearly hear.