I have the Model 4 and Amarra software and will bring it to CanJam for the masses to experience. I am just starting to get a sense of it, but I like what I hear and really just want to compare the Model 4 output to a Weiss or other hi-rez DAC. Going to try to have that at CanJam for comparisons and will want honest impressions from whoever hears it. I am crazy enough to consider the Amarra/Model 4/external DAC option because the Model 4 has AD capacity, firewire interface, and other advantages that may make it worthwhile even if the DAC is outclassed. Make a point to check this out at CJ09, please.