Well when I move on from my DT1990s, I'll make sure to check out what hifiman is up to.

I'd say I average 5 years between each headphone purchase. Once a pair starts to wear out, I either repair it or upgrade if I have the money and want something new. My path went Senn HD555 > Grado SR 60 > Philips X2 > Beyer DT1990. I figure in 5-10 years I'll see what Stax has that might interest me. Or maybe see if Hifiman has upped their build quality/QC.

I doubt my Beyerynamic DT 1990 will ever break, but it's nice to know that if it does I can buy any component of it at a reasonable price. I wish more companies would sell parts at no markup

Yeah that's an amazing first open-back setup.

I would experiment with Equalizer settings with the DT 900 before thinking about upgrading to see if it's the sound signature that you don't like, and see what signature you do like

Yeah that one is pretty, and I bet it feels great

I love my setup. I might someday upgrade my IEMs, but it doesn't make sense to at the moment since I'm working from home and not using them much.

Headphones: Beyerdynamic DT1990

Home source: laptop > apple dongle > JDS atom amp+

IEM: Thieaudio Legacy 4

On the go source 1: laptop > apple dongle

On the go source 2: Fiio M6

It's also on postcards and magazines and such all over the place. One of the most photographed trees

your post title says 599, but your post is about the 560. typo in the title i guess?

speakers are nice. if I lived alone, I'd use my speaker setup 90% of the time, and my headphones 10% of the time. Instead, it's the inverse.