Hello again, thanks. So it looks like you're upgrading your DAC because the NFB-15 is too warm and mid-forward? Also I've scoured the web and I can't find this one for sell new/used ANYWHERE. But I guess that's OK. Yes please post your impressions on your Adcom once you try it out. Thanks much!
I upgraded to the NFB-28 a couple months ago because I've upgraded headphones and wanted a more neutral sound (also balanced out). I still have the 15 because I really like it with my older headphones and it's nice to have an option in DAC's.
Now that I have a few more DAC's coming in tho, it might be time to get rid of it. Makes me sad thinking about selling it but I am not using it much.