I'd vote for another pair of headphones, it's going to be massively different than trying another amp for the Susvara.Does anyone have an opinion on what would be the more worthwhile purchase if you already own a wa33 and susvara headphones:
Adding the ahb2 amp so you can experience a SS amp and also using the wa33 as a pre or purchasing the abyss 1266 headphones to use with the wa33 alone?
Considering you already have a high end amp and it pairs magically with the 1266, you'll get much more for your money (you'll be spending more as well).
This setup will give you much more flexibility and different experiences than just adding more power to the Sus, it's not like it doesn't match well with the WA33.
I happen to have the same setup