The amp itself is completely uninteresting besides basically killing off the Asgard 2, which was honestly pretty uninteresting as far as products go. Yeah sure nice specs and huge power output but what solid state amp doesn't really have that these days? I don't think any modern headphone amp struggles with anything that isn't that one out of production AKG K1000 or HE-) and you're probably got money to go into the deep end of loudspeaker power amps for those.
The real game changer, if there is one, is that Schiit has announced a fully balanced phono pre-amp for around $500 that can also drive headphones and isn't a huge clunky piece of shit either. Sort of a lost opportunity by not making the chassis a little bit larger so you can have both DAC and phono stage modules.
I'm not sure what to make of the Jotunheim to be honest.
On the positive side, it's nice to see them do an integrated-but-modular DAC/Amp combo they once swore they'd never do, it's a much easier sell to the casuals. Nice to see they are pragmatic like that. Also, having a balanced system at that pricepoint is super nice. And doing a combined Phono/Amp unit should be huge for the vinyl hipsters.
On the negative side, if you are going to spend that much on an amp, I feel you'd want a nice MB DAC to go with it, it seems the balance is tipped a bit too much to the amp side here.
By the looks of it, this is the most direct competitor to my Asgard 2 / Bifrost MB stack. My stack wins clearly on the DAC side but loses on the balanced output side. Currently I don't have balanced headphones in the office, but if I did, I might be tempted to upgrade from Asgard 2 to this, sans DAC. But actually then I'd need a balanced MB DAC since Bifrost MB isn't one.
Oh well, just got my shipping notification for my two Yggdrasils, now Schiit just needs to get around making my Ragnarok, shit has been on order since June. Makes me almost suspect they are upgrading it now.