One guy claims the Asgard 2 and Magni sounds the same, so it HAS to be true. Even more so because he has an A/B switch! Oh and they measure flat.
I honestly have no clue how anyone could hear the two as sounding the same. Almost no amps ever sound the same to me. I wish they did. No, there is not like a night and day difference usually.
The only time I got a near identical sound was with the Vali and Headroom Micro with the Q701. When switching headphone the results were way different.
Ifi Ican and my Micro Amp are also pretty close in sound. I've found those to be a better all-rounder then the O2, which is supposedly neutral/transparent.
I think the general consensus since the Magni came out is that it's a little thin and bright. Basically still neutral. Doesn't mean it's bad. Perhaps Schiit did some sort of silent update, but probably not. I just have to disagree that they sounded the same. That is all..
I know some have said it's not bright at all and sort of warm. Mine had about zero warmth.
Had the Asgard 1 for years before selling it and it definitely sounded nothing like the Magni. I also had the Asgard 2, but found the Magni to sound better. The Asgard sound is just not for me. I'd have loved it with a DT-880/990 perhaps. Some have said the Asgard(1) has a "warm and analog" sound and I would agree with this. Maybe some hear the Magni just like that. I just can't imagine this! I did like the Asgard 1 with the HD-600 and D2000. It seems almost made for those.
I could easily take 2-3 headphones and get two amps to sound the same. IMO the HD-600 and HD-598 sound nearly identical on every amp without much change. The HD-650 seems to improve a little more when I made gear changes, but it still manages to sound great on almost everything as long as it's fairly neutral.
Comparing amps with an HD-600 is kind of silly actually. What's the point. I often could hear more changes with my old KRKs and DJ100 than the HD-600.
Another BTW, many of the amps i've had sort of changed their tune with different headphones. For example, the Vali was terrible with my HD-650/DJ100, but amazing with the Q701.
My Bravo V2 is also great with the HD-650 but hates the Q701. Same with the O2 mostly. I really don't like that much with the Q701.
Oh yeah, for hearing gear changes I found the DT-880/T90 extremely good for this. The T90 was the only time where I felt the Modi was holding it back a little and that's one amazing DAC for the price. I can't imagine what the T1 or HD-800 is like.