So I actually started with a SET amp on this rig (realizing I was lacking a ton of details...

), it was first a Decware SE84UFO, and then I upgraded to a Decware SE84UFO25 (anybody want to buy either?

). I enjoyed the sound quality quite a bit, but it lost steam on heavier arrangements (whether it was my heavy metal or orchestra's) so I went looking for something closer but with more headroom. So I bought the Aegir and Freya and took receipt of them last week. I wanted something pure solid state just to A/B, the midrange isn't quite as good (that's expected) but the highs, bass and overall control definitely have improved. Just feels like more slam, so quite happy with that, saves me some cash too.
So I *think* the Aegir has delivered so far but I'm having a hiss problem that I can't sort out if it is my Aegir or Freya S. Schiit support thinks it's the Freya, but since I sit pretty close nearfield (~3 feet) it could just be that the gain modes of the Freya are causing me to hear the noise due to the sensitivity of the Omega's. The passive mode is dead silent thankfully, but it lacks a "something", so not ideal. So unfortunately I'll be out my preamp for some time, which makes getting any components a lot less fun.
I was leaning towards the Yggdrasil since the black chassis's usually sell out fast and I really wanted one. But I am thinking a sub is a better first move as some of you have noted. I was originally going to go with the deepHemp, but I can't shake the feeling I really want a servo subwoofer. I think it was roscoe that had the Rythmik? Well somebody on here sent me on a goose chase, and I ended up thinking I really want a F12SE. Not as attractive, but not a huge deal as it will be in a desk well.
As far as the chord goes, I find their designs fugly. I just can't bring myself to want one. So I've avoided them because of that, despite the glowing reviews. I'd rather go with a Maraschino amp or something before that.
This whole setup is my "work" setup along with play. Since I work from home, I get the benefit of high quality audio all day as I program. So I suppose it's a bit unconventional, but I don't have too much room either. So dual subs would be a problem, but Enrico @ Rythmik thinks that one should be suitable for all of the soundstage depth and such that I am expecting from a sub, since I can't really do two easily, and I sit so close.
As far as room treatment goes, I'm not sure that will bring *too* much benefit at my distance, but it's definitely something on the table.
Appreciate all the responses, and @Avsfans, that's a great looking sub! I think I saw it in your thread, hopefully it kicks as much ass as it does visually. Love that wood finish.