A bit about me, I've been playing WoW since WoTLK on and off and have recently joined back to play WoW classic.
I've also recently got into audio quite a lot, (I wouldn't class myself as an audiophile yet) listening to music and trying to get the most out of it without breaking the bank too much rofl. I have two setups at the moment, one for my PC which I currently use for gaming but I'm looking to upgrade the headphones:
PC > iFi Zen DAC > Meze 99 Classic headphones
And my second setup which is just for listening to music is:
PC > iFi Pro iDSD > Sennhesier HD 800 S
The second setup I'm very happy with and will leave for the time being.
Holy cow, you are not joking with those headsets. And here I was going to recommend my HyperX Cloud II headset but your's make those look like some cheap-o Best Buy store brand earbuds. Your "just for listening to music" set-up cost twice as much as my entire desktop set-up combined.