Long story short i've been hit with upgradeitis and I need some opinions from the more experienced members.
My current Setup
320Kbp/FLAC songs-->Bifrost-->Hifiman EF-5-->DT990/K702
My go to headphones are the DT990 600ohms and once in a while i'll use the K702s.
I generally like very musical songs and i'm not much of a bass head
I was considering the HE-500 but i've looked into several threads that mentioned the EF-5 and HE-500 might not be the best match so i'm stuck considering what I can do at this point if my budget is less than $500.
Also considered the HE-400 or HD600 but not sure if that'd be an upgrade or sidegrade.