Rather than solve the dilemma, speakers or DAC, let me suggest a 2-300$ alternative: a super re-energizer & reclocker like
the one I use. (Fantastic little device, kudos to my dealer!) You should expect a fuller sound with better hi & low-end extension from your current DAC
The reclocker lives between the source and the dac and cleans USB noise, energy, & phase issues. -
In fact, I now daisy-chained two 3Rs and gave up on replacing the DAC (for now).
Check the improvement such a device makes and decide if you still want to change the DAC. Even if you spring for a new DAC you will still keep the reclocker -- it is useful even on a 100k MSB (I tried my 3R on one). Regards