As an audio engineer, the best gear is the gear that I’m used to.

If you’re talking solid-state amps, it’s mostly snake oil.

You’re going to have a hard time getting something to sound like it’s behind you on speakers. Headphones offer better positional accuracy (not accounting for atmos systems).

Also have you ever tried talking in game with someone who is using speakers?

As someone who has heard bother the Ananda, Arya and 6XX (along with many other headphones). The Arya is not an objective improvement over the Ananda, its just different (but not that different).

Above this price point you start hitting huge diminishing returns and esoteric tunings. Just stick with Ananda. If you don’t like them, sell them and get something else. Owning the Ananda and Arya is like owning two identical cars with slightly different trims.

DT990s were great for years until they literally fell apart. Aryas now are amazing.

only one way to find out

If you’re not maxing out your volume, an amp is not going to add anything that isn’t there. You might get a slightly cleaner signal, but it wont “fix” your headphones