Keep 'em coming. The $10K Hifiman cans is sure to arrive.
It's been here all along.
I have the Ananda Nano, what headphone I should buy if I want go a step forward? (Less than 1000€).
The "natural" step up for many Hifiman phones is, so to speak, their older sibling. Like for example HE400 >> Sundara >> Ananda >> Arya >> HE1000 >> $$$$ >> $$$$$. In the case of the Ananda Nano, that would likely be the Arya Organic, which is currently on sale. At least it is on sale in North America until the end of this month, not sure about Europe. If it is discounted there as well, it would surely cost less than 1,000 euros. If the Organic remains out of reach, a very viable alternative is the Arya Stealth, which cost $1,500 until 2 years ago but is now, more or less permanently, on sale in the US for around $600. That's a steal, considering I paid $1,200 for mine, excluding taxes, in 2022. Dammit.
Since you seem to like your Nano, you'd be on more familiar ground with the Stealth, but I think the Organic should be considered/tried first if possible. The Stealh It is sort of like a Nano on steroids, only one with a more relaxed yet deeper and tighter bass, mids just like the Nano but with added texture, a richness of tone, and, of course, the same anoyingly bright highs.

Yes, the treble is a little hot, but that is very easy to correct with EQ. I've owned the Stealth for a few years already, and it serves me well. But ! received an Organic as a Christmas present from my wife and can't put it down all day until exhaustion drives me to bed. Today I finally tried the Ananda Unveiled I had ordered before Christmas, and was pleasantly surprised. It sounds like no other Ananda, that's for sure. Anyway, it's cool to be retired. I can do real stuff, like comparing headphones
The Organic doesn't have treble issues, despite being the clearest cans of the Arya family (I haven't heard the Arya Unveiled yet). Still, it (the Organic) can be crotchety when not properly driven. Best to avoid driving it with a phone or tablet; it will work, but it will sound like it's being filtered through a kazoo. Not good. What is good there is plenty of, however. Deep sub-bass, but it's relatively fleeting (as in agile), so bassheads need not apply. Bass just right; fills its spectrum then rolls off quickly. It doesn't bleed into the low mids, and these in turn let the high mids do their thing on their own. "The dip" may be on the charts, but I can't tell. Treble is clear, not shouty or sibilant, just clear. I am elated beyond trepidation. I hope this helps
