Anyone using the Bifrost 4490 with their HD800? Looks nice and it's relatively affordable ($649AUD). I'm looking to upgrade to upgrade my ancient DAC Magic but not a fan of spending too much on a DAC.
I use it, yes - I have no problems with the DAC, which is quite good!
However I have more utilitarian amplifiers in the Bifrost setup - Asgard 2 and Vali 2. These are not the best match amplifiers for HD800. Thus I tend to use a stack consisting of DNA Sonett and Schiit Gungnir Multibit when listening to HD800.