>>724453639
>hd 598
Great choice. You should consider replacing the earpads once a year. You have no idea how much it will improve clarity. They are designed around the pads. Genuine or as close of a knock-off as you can get. They are my 4th favorite headphone.
HD800S > HiFiMan Edition XS > Sennheiser HD560S > HD598/599.
You have no need to ever upgrade IMO, but if you did want the 560S or Edition XS would be a nice step-up. But genuinely try a pair of replacement earpads. You'll be SHOCKED at the improvement. None of that dekoni nonsense. Genuine or knock-off velour pads. I'm >>724513984