m-i-c-k-e-y
Headphoneus Supremus
Very very helpful stuff thank you! Sim audio may take a little bit to get the 430 here due to COVID so I got time to look into all these.
I especially am considering the 430 because it seems people keep theirs around long after just for the amplifier, and use DACs later with it.
Consider Vioelectric V590 also on your list as AIO. It has a thread in here.