Got my Aegir 2 today!
And I tried it out in my basement system, which normally looks like this:
Raspberry Pi running Ropieee -> Schiit Eitr -> Adcom GDA-600 -> Schiit Lokius -> Schiit Freya N -> Yamaha B2 -> Yamaha NS-1000M
All the vintage components in that chain were substantially rebuilt be me.
So, the Aegir replaced the B2 for a test session. And here's my impression:
I'll say I was quite impressed by the sound quality coming from the Aegir. The midrange is definitely up there with the best I've heard. Treble is great. Bass is also good, but deteriorates quickly as the Aegir approaches its maximum, which leads to my main point: I was a bit surprised how easy it is to throw the Aegir into protection. The NS-1000Ms are 90dB sensitive. Normally when I work out in my basement the VU meters on the B2 show 10W average, but the bass peaks will sometimes make them bounce up to 30W or even 50W. With similar loudness, the Aegir was never far away from protection mode. With the tubes engaged on the Freya N and the volume control around 2:00, the Aegir would go into protection every time.
So, for me, unfortunately a single Aegir isn't suitable for either my basement system or my family room system (same setup as above, except with a Yggdrasil+ and a Loki Max). The Aegir will replace a G-Horn and do its duty in my office system, which is where it was intended to go.
However, I am impressed enough with the Aegir 2 that now I'm wondering how good they would sound as mono blocks! 100W would do it. Maybe one day....