My main gear currently are an Ifi Zen DAC and some nice Hifiman 4xx plugged into them.
No matter what, I keep coming back to these two. I have other gear, not this is the one that pleases me the most. It is not my endgoal, but it’s superb to my ears.
Sennheiser HD 660S2 (along with a variety of other headphones) with Topping E30II/L30II stack