Got mine in today. Been comparing it to the bifrost using the HE-500 and lyr.
The bifrost seemed to have slightly more detail, slightly better separation and extension.....slightly.
I no longer have my NFB-12, but when I compared the NFB 12 DAC section (using the lyr as amp) to the bifrost, there was an obvious improvement upon first A-B comparison. This was not the case with the ODAC which speaks to how good it sounds.
Keep in mind that these weren't blind comparisons, but in my mind I did think the bifrost sounded a little bit better, but I thought the ODAC came suprisingly close.
I have done more A/B comparisons between the ODAC and bifrost and I honestly can't definitively say that the bifrost is any better than the ODAC. They are pretty much on par with each other. I keep thinking that I'm hearing a minute improvement in bass extension and a slight "airyness" with the bifrost, but I'm not sure.
Edited by mac336 - 6/16/12 at 8:28pm