I will probably be ordering a SB2 soon and will either eBay my SB1 or (more likely) relegate it to duty elsewhere in the house. I'm curious to know what to expect of the upgraded DAC in the new version though. I'm using an M-Audio SuperDAC 2496 which I found to provide a significant sound improvement over the SB1's internal DAC and I'm curious to know if the DAC in the SB2 will surpass the performance of the M-Audio. Of course I'll listen to both and make up my own mind, but does anyone have any experience, opinion or forecast to share in advance? A one box solution will be neater and if the SB2 DAC is better, I can continue to use the M-Audio with the SB1.