Quick Asgard 2 review to contribute to the community for all the stalking I've done.
Primary System: U-turn Audio Plus (Grado Black 1) --> Schiit Mani --> Asgard 2 --> Philips Fidelio X1/28 (with replacement custom Canare L-4E6S cable).
My system (which sees occasional digital use via a computer running Clementine into a Modi 2) had one area in which I was unhappy: clicks and pops and "space" when playing vinyl - even new or just-cleaned vinyl. So I started researching new cans, new cartridges, phono preamps, and headphone amps. For a while I was eyeing end-game headphones given the price drops in the past few months: HD600, HD650, T1, LCD-2. But then I'd be stuck running really nice cans on the Magni 2, and that felt wrong.
Add in the fact that my set up had the headphone amp running out of the second-zone of an old Pioneer receiver since all I had was the Magni 2 (not Uber) and I was thinking it may be worth re-wiring so I was running the Magni 2 direct from the Mani. This ever-so-slightly improved the system, but it was clear that something was in order.
Enter the Asgard 2. Obtained via B-stock status, I can't find the flaw. It may be a 1/4" (6mm) scratch on the top of the case that is only visible under strong light. Hardly worth noticing and had I received (and paid for) a flawless unit I never would have noticed the scratch as it was only discovered after a few minutes of serious study. So compliments to the Schiit team for considering this B-stock.
Since this is page 155 there are plenty of reviews out there; so I'll just try to add to what has been said instead of recapping what is known about this great amp. All comments are based on playing vinyl, no digital tests were performed.
1) Midnight Oil, Diesel and Dust: Very slight audio improvement compared to the Magni 2; the clicks and pops are less audible. In blind test I doubt I could tell the difference to be truthful. Verdict: Tie.
2) U2, War: I have always despised the way the hi-hats were recorded on this album in every format and system I've owned. No more. Instead of sounding like a wash of white noise, the Asgard 2 renders them sounding like actual hi-hats. Not to mention the greater space versus the Magni 2. Verdict: Asgard 2.
3) Postal Service, Give Up (reissue): The first song on this album has fake record noise, and if there is a downfall to the Asgard 2 is that it renders the fake record noise so accurately it is even more annoying. Verdict: Asgard 2 because the rest of the album exceeded my expectations. And any band that releases vinyl with fake vinyl noise really needs a reality-check. Seriously. Leave the fake vinyl noise on the digital releases but remove it from the vinyl mix. Just annoying. Oh yeah, and the Asgard 2.
I also listened to four other albums I'm quite familiar with prior to deciding: U2, Joshua Tree; The Cure, Disintegration (reissue); and Cowboy Junkies, Trinity Session; and David Gray, Mutineers. All four had slight to moderate improvement in instrument separation and reduction of vinyl noise. In addition, the sibilance on the Junkies cover of Sweet Jane was reduced a moderate (and appreciated) amount. Still bad, just not as bad. So a win there. Overall I just like the Asgard 2 better, but that could be confirmation bias, the newness of the sound, or the honest fact it performs better for my system. Not sure which, but I like it regardless.
So, for my vinyl system, the Asgard 2 is a clear winner - but in the words of Schiit - the Magni 2 may be the only amp you ever need. I'm just glad I updated to the Asgard 2 because the improvements in instrument separation and definition along with the way it handles clicks and pops makes it an endgame amp for me.