Most units have several inputs. I'm assuning you're looking for a DAC that has at least one of each input - optical, coax, and USB? The only ones I can think of that wouldn't allow what you're looking to do are the Ayre and Wavelength units, which only have a single USB input.
DAC's in General
I have read a little about DA Converters, but am a bit confused. Is it possible to have one unit which i can connect my CD Player, Computer, and Wireless Apple Airport Express to? I know this is a tall order but it would be nice to not have to conect different cables for each source.
Thanks
Thanks