Need help choosing a new DAC

You need to look at the Gustard x26 pro at $1,500. Great filters all adjustable via the remote. All possible connections available. I moved the Denafrips Ares 2 to my secondary system.

Agree with audioman85. .. you can’t beat the Pontus (which also does NOS) and is the best value here. Amazing R2R architecture, high quality parts, and built like a tank. There are some really experienced members here who recently bought it and can’t stop singing its praises. 

But I think OP has his heart set on tube-based dacs, in which case Audio Mirror Tubadour iii se is also a great product and it’s made in USA as well. I had their non-SE version which was a great match with my SS amp. 

A warm low-ish cost DAC is the Gustard X26 Pro. I owned it for a while and loved it.

I also owned the AudioMirror (top model). It was pretty good but I preferred the Gustard for my warm DAC types.

I currently own the Benchmark DAC3B. It just does the job and I like having it around. It is a little hot on top. I was told by someone with some audio experience that the DAC3B is a little shy on the bass and that makes the top seem hotter.

The best DAC I own is the Musetec 005, ($2965 - $3300). It has the perfect warmth, detail, and really dense sound. I would like to get a second 005 to replace the rather good Topping D90SE DAC in my living room system.

Two years ago I went through the same task of trying to find a DAC that made a difference to SQ. Like you I have an all tube system but found that Denafrips Pontus, and the Orchid and Pagoda made absolutely no difference. The distributer for Denafrips who loaned me the Pontus said I would need the Terminator to notice any improvement in SQ. I eventually went with a SS DAC in my price range which did provide greater dynamics and clarity, This was the Pure Audio Lotus 5 which used the ESS 3089 chip. The fact I liked it surprised me because I have generally hated ESS products finding them way to bright but the implementation in the Pure Audio was extremely musical and a great match with tube amplification.

+1 Audio Mirror Tubadour III SE. I owned one for about a year paired with a SS amp; it is a wonderful sounding DAC.  The non-SE version has been discontinued.