bagwell359
Headphoneus Supremus
he6se driver and HE-6 driver - that's a disaster scenario. They are quite different. Time smear, dueling FR profiles, different frequencies for ringing. Diff bass impact. I don't think the Arya is a fair replacement. HEK se and Susvara only ones that are clearly better, and that's a lot more dough.Hifiman cs is very good, however they will likely offer to replace w/ he6se drivers or ask you if you want to upgrade to Arya or other models. They no longer have og he6 drivers to replace them with, I am sorry to say.
Personally I fear getting a pair of HE-6's for some of those reasons, HE-500 getting into same area, but less expensive.