I received my Argon mk3 in September and ran them off my Topping L30. The reason I bought them was because of the reviews saying the bass is so good. But after a lot of listening on the L30 I felt like the bass quality was lacking, maybe a bit muddy. It all kind of sounded like the same one bass note and to be honest I was a little disappointed.
I didn't want to give up on them though, since a lot of people are saying they need a ton of power. So I bought a Topping A30pro. Just running RCA in and SE out. And... yeah it's a lot better, the bass is more textured and tight and controlled. I'm enjoying the Argons way more, they definitely need the extra power.