I had a GDA600 DAC by Adcom. Nothing to write home about. It was a little too smooth and lacking in details, but was good for taming a bright system that I had at the time. A MSB Link III (never heard the earlier ones) would be a significant leap over the GDA-600. Remember the GDA-600 dates back to about 1994 or so. So it is pretty old at this point. A modified MSB or an EVS DAC would be a significant improvement over the stock MSB in everyway.
