I don’t have a ton of DAC experience but the 2 R2R dacs I’ve had are way more enjoyable to me than any sub 2k Delta Sigma I’ve owned. Currently have a Musician Pegasus 2 I got a great deal on locally. Was not happy with the DAC in my Cambridge streamer. The Musician makes that built in DAC sound broken. I’ve heard great things about the Gustard R26. Sounds like that might be the one to beat sub 2k.
Upgrading to a stand alone DAC
I have the upgrade bug..lol. I am considering purchasing a stand alone DAC as 60% of my listening is thru my CD player (NAD C568). This was purchased new 3 years ago for $799.00. My budget would be $1500. Rest of system is the Marantz Ruby KI integrated amp and the Reference 3A de capo speakers. Would I hear a significant difference at this price point?