I've spent a few hours with the Ragnarok now: MacBook via Bifrost Uber optical, to LCD-X balanced (they're new to me, which may color my impressions of the amp) or to PSB Alpha B1s. Redneck cables. No blind tests yet, but I'll give some early impressions of both the sound and the experience of the amp.
First, the sound through the Audezes. Relative to my last home amp (NVA AP10P, original design) and current work amp (Meridian Explorer) the detail and realism are awesome. For musicians whose sound I know well in person, it's the first time I've heard reproductions coming close to the original. I especially love the noise -- you hear plucked strings, bow changes, surface noise, not just representations of them.
My speakers are for daytime use, which means dancing and singing kids in a large living area with occasional improvised accompaniment on piano. As I mentioned, Redneck cables and mid-fi speakers. It's not an acoustically-treated shrine to audiophilia. Sounds great though! I had the weird experience of my daughter sparring with Bill Evans, and it sounded like there were two pianos in the room. This setup is missing a couple of octaves at the bottom and the detail of the Audezes, but it's honest: instruments sound like themselves, which I can't say about some of the more exotic equipment I've heard. The Schiit isn't as loud (EDIT: across most of the dial) as my Cambridge Audio Azur integrated, which really just means I'm using more of the dial. Which brings me to a pleasant surprise...
The marketing for this amp left me worried about smoking equipment and permanent hearing loss, but it's actually a great amp for quiet listening. I leave it on the lowest gain setting for the Audezes, and have fine control for quiet to moderate levels (9-12 o'clock for most classical recordings, 8-11 o'clock for everything else). For my speakers, high gain from 9-1. I've never been able to use this much of the dial before. With my NVA, I'm trying to find the tiny gap between silence and deafening noise. The Meridian (whose volume is controlled from the computer) remains on the lowest tick or two, even for my HD600s.
Now, the experience. The Schiit looks beautiful, weighs a ton, runs warm (not hot, at least in this mild, late summer weather), controls feel good. My one complaint: switching between speakers and headphones is awkward because there's no dedicated control. You hold down the input selector button for a couple of seconds to cycle through speaker, headphone, and speaker+headphone output settings. I have no idea why someone would want to play back through headphones and speakers at the same time. Because there is no visual cue for the output settings, I'm actually tempted to leave the amp in headphone+speaker mode and just unplug the headphones or positive speaker leads as needed. Any reason this might be unsafe?