1. HD580
1. HD600
1. HD650
4. RS-1e (still working on getting these just exactly perfect, but I sense potential here, and I freely admit that I’m a sucker for the mahogany and leather construction)
But for the Grados, which are relatively new to me, I could have written this same list many, many years ago. Like
@BobG55, LOTS of other headphones have come and gone in the past several years (I actively practice catch and release), many with big reputations (and even bigger price tags), and a few more than once, but these have stayed. Indeed, my 580’s date back to the previous millennium, and a few pad changes later, they are still in regular use, near-permanently plugged into the HA160DS on the desk in my home office.
YMMV, just my $,03, etc.,
ad nauseum.