just mess around with it and see what sounds best to you

Vali only puts out 220mW into 300 ohms and I usually keep the volume pot at 8:00-9:00 depending on the album (I have hd600s not 650s but they're basically the same headphone)   how loud do you guys listen to music?       Asgard 2 is an all-rounder and 650's aren't that hard to drive...

Vali/Modi/600 

  The 1.8 and 2.1 are likely for high gain mode, in which case as long as you stayed in low gain mode you'd probably be safe.   not that you should/would ever be maxing out the volume pot on your amp     I'm listening to the combo as I type, I don't know if it's forgiving but its very...

Just by looking at the specs:   Magni 2U has lower output impedence, lower noise floor, lower distortion, higher power into low-impedence, much lower power draw (will run a lot cooler) Asgard 2 has slightly more power for high impedence headphones and is class A   specs aren't everything...

That's quite the device, if it sounds good at least.

Interesting.  I wonder why mine is so noisy, oh well.

IIRC the original modi was always capable of 24/192, but was locked to 24/96 so it wouldn't require drivers on Windows.  I assume the expert/standard switch is just so Schiit can solve driver issues with a "if you can't figure out the drivers just set it to standard mode".

Thank you, I don't even want to say how long I've had my 600s with loose connectors. 

Asgard 3 incoming?  Asgard 2 is class A whereas Magni 2 is AB; will be interesting to see peoples impressions on Magni 2 vs Asgard 2 and Modi 2 vs Modi vs Bifrost.

... how did I not know about WASAPI until now.  Thank you for unwittingly solving a problem I didn't know I had.

Is your Vali quieter than mine?  The background noise of Vali stops me from ever plugging 598's into it.  Maybe I have some interference getting picked up or sensitive ears...

I've been waiting a year for sennheiser 598's to be under $150 in canada and suddenly on amazon they're 114, awesome

439's are great for the price