@bunkertoy I wouldn’t blindly subscribe to all DAC’s in a $ 1,000-3,000 sound the same, even if they share similar designs. I’ve been able or lucky enough to be able to compare DAC’s in my system, have had Node 2i, Lumin D2 w/Sbooster, MHDT Pagota Balanced and the DAC in a Krell Illusuons ii Pre. I was able to swap between the DAC’s and also use either the Node 2i and Lumin D2 as a streamer only. I then sold the D2 and bought an AURALiC G2 as a stand alone streamer. I still had the Node, MHDT and Krell and would switch between them. They all sounded noticeably different. With all of the DAC’s using the stand alone streamer was a noticeable step up. Synergy was also a big part of the equation. Choosing the input and output’s also played a key role. I moved on to a Lumin P1 and then to a Lumin U2 mini w/Sbooster feeding a PS Audio Direct Stream MKii. So, I’ve had R2R, various Chip designs, FPGA designed DAC’s and they all sound different in my system, noticeably. I can also hear differences when changing inputs / outputs.
Finding either a streamer that’s versatile and can play well many DAC’s and various outputs or getting a Streamer that is known, designed to have a special connection to a DAC like say the PS Audio Airlens and MKii using the I2s are keys.
You have a really nice DAC already, I don’t know that in this price range you’ll beat it, more likely you’ll find something that sounds different. I like the advice you got around picking a versatile streamer, enjoying the DAC you have and then upgrading the DAC down the road. If you do roll with a new DAC and want North American made or European made and want to go the R2R route, Linear Tube Audio (LTA) just launched their first DAC, it’s R2R and has a Tube stage. It’s getting a lot of love and they are known for making outstanding gear with high quality parts usually not found in gear at the price ranges they sell at. Schit also has a crazy ratio, value relative to price. If you venture into Asian made products, MHDT offers some really well implemented R2R tube stage DAC’s. If you went with an all in 1 box, a Lumin T3 used would be a nice step up but then you are a little more limited, not as flexible as having separates. Used will give you a nice bang for your buck. Another highly regarded R2R Tube DAC made in the U.S. is the Audio Mirror Tubador has gotten a lot of love in the past but haven’t heard much recently.
Synergy is key, the streamer and how well it plays with the DAC matters, how well the DAC matches the Pre / Amp also play a big role. The technology is always evolving from DAC standpoint but a well implemented power supply and output stages along with the overall design of the DAC are way more important than the latest chip. Out of all the DAC’s I’ve had, the MHDT Pagoda balanced was my favorite. Next to the Node 2i, was the cheapest, the design was old school, R2R with a tube stage. At some point I’m going to either buy this DAC again or a similar design, something like the LTA or Tubador to compare to the PS Audio.
Good Luck!