Backgroundblur - some questions (sort of)....
- are you using the power cable that came with the DAC? - the Bifrost really ups its game with a good power cable :-)
- are you using the USB port? - I upgraded to the new Gen 2 USB, but on a whim I tried a v-link192 USB-SPDIF converter - the improvements were nothing short of amazing - seems Schiit has a lot of work to do on their USB Interface
- What interconnects are you using? - the Bifrost rounds out its game with the selection of really good IC's
You are right about burn-in - I've had the 4490 installed for about a month and it's taken most of that time to really settle
I upgraded to the 4490 and could not believe the improvement in details, image, clarity and punch - the multibit is supposed to be even better.
The "analogue feel" should come over time, but it takes around 200-300 hours of playing for it to get close - 300-500 hours and it will start to "fill out" very nicely.
I listen to classical and for the first little while the upper register of the violins and high notes from sopranos could be very shrill - not any longer - just incredibly rich, full bodied and very detailed.
I did think about the Multibit upgrade, but figure I'll wait until I upgrade to the Gungnir :-)
Enjoy.