Had the HD800s for six weeks now and...
all my other headphones are gathering dust.
Have you listened to Ragnarok/HD800 combo or as you said, everyone is hoping that it would play well with HD800?
Not going to give you any amazing improvements I don't think. The mjolnir is a pretty darn capable amp.
If you really want to step up your amp game for the HD800 should should probably be looking at a tube amp. Eddie Current super seven for instance.
Or wait until the Ragnarok is introduced and see how that turns out.
What's the budget for the DAC?
1000ish. I'm thinking of selling my HE500 and Uber-bifrost to finance the upgrade, though I'm debating whether or not I really want to sell the HE500 at this point. It still holds it's own against the HD800, given the right genres. What the HD800 excels at though, leaves the HE500 in the dust.
Or the AudioGD Master-9.
My Master-6 is stunning with the HD800's so the warmer, fuller ( as per a few users reports) sounding Master-9 should be a top class SS amp for the HD800's