I’m looking for some new sensitive headphones, with clear and sibilance free highs. I’m a bit of a Stax fan and have grown addicted to their incredible non-fatiguing highs. Ideally I’d want a Stax that didn’t need the dedicated amp but that’s not going to happen. There are quite a few reviews...

So, I'm looking to maybeee, perhaaaps, possibly get rid of my Stax L300 and SRM-313 and replace it with a single headphone. -the missuss keeps looking at my Stax amp with unveiled disdain, "too big" my foot! I still have an L500, keep in mind, so it's not like I'm abandoning my Stax. That would...