Looking for recommendations for a 'warm' sounding DAC

I only have a setup for my headphones (higher tier) and i love my metrum nos hex dac

great separation, natural/analogue sound. 

This dac will never be sold by myself

This has been discontinued in recent years. 
The pavane is one of the older higher tier that offers more - i have not heard it though. I also have not heard any of their latests dacs so I can’t help there either

I said I wasn't going to participate in these forums again, but here I go.
Barely any audiophiles seem to know of Prism Digital. Heavily used in the high end recording studio world and regarded as the most accurate sounding AD & DA converters out there. So enter the Prism Calia consumer model; by warm I assume you mean rich and accurate harmonic reproduction accurate to live music, while being open and clear sounding. The Prism Callia. Or it's Pro version which would have AES EBU
Another choice would be Dacs or built in Dacs from the SPL line in Germany. Also a Pro roots company. These are the AD's & DA's the high end studios are using and there's a reason for that! 
Audio by di tomasso

Border patrol. Denafrips.

Schiit Yggdrasil,  Marantz

I use a Holo Audio Spring DAC Kitsune edition which is a R2R design. It is very musical and right in your price range. I have also read lots of great things about the Audio Mirror Tubadour. Good luck!