Awesome! Nirvana!
Best place to arrive at in this hobby when you can just sit down and enjoy the music.
By the way I wasn’t implying that your system is inferior or subpar when I stated I don’t know what it consists of. I just couldn’t possibly know aside from the Chord stack you mentioned earlier what else is there. So I assume some of the elements of your reply stem from this misunderstanding
As a note….in my opinion, and I could be wrong because I haven’t heard all the headphones and hp amps in the world, but headphones aren’t really the best tool to thoroughly evaluate your source components. Yes you get to hear the tone, the overall sonic signature…but it doesn’t give you as big of a view into how it’s all tying together when it comes to soundstage, imaging, instrument placement within the soundstage, etc. Headphones just don’t do that as well as a proper pair of speakers would.
I’m going to also be honest that running the source components you have through the Bose 901 is only going to give you what the Bose 901 can give you. There won’t be a night and day difference between DACs.
Just my honest take on it. No offense.