HIFIMAN HE6se V2

I use the replacement band for the HE400i (which is, I believe, the same as is on your Arya just with different badging). These can be purchased from Hifiman directly for $75, and make this headphone 10x more comfortable IMO. I also have this HE400i suspension-style headband on my Sundara, but for aesthetics alone. I hate the look of the 90-degree twisted yoke thingy on the stock band, though it never gave me any issues comfort-wise. To put this headband on the SunnyD required some enlargement of the mounting holes in the metal cups with a cordless drill, but the whole job didn't take more than an hour I don't think. Anyway, welcome to the HE-6-O'rama club!