The Bel Canto C5i may well tick all your boxes and save you $$$ buying used, and there’s a nice one now on USAM for only $825 (retail $1895). It puts out 60Wpc into 8 Ohms and doubles into 4 Ohms that should be more than ample power for a desktop setup, and as BC makes some of the better DACs on the market it may well beat your DAC in which case you could sell your DAC to offset even more of the BC’s cost. There are several reviews you can read for more insights/info. Just another option FWIW, and best of luck.
https://www.usaudiomart.com/details/649840775-bel-canto-c5i-dacintegrated/