Hi Joeling,
I used to have: (a) Taiko Extreme -> Totaldac Twelve mk2 -> CH Precision L1+X1
I compared it to (b) Taiko Extreme -> Totaldac Twelve mk2 -> 2x Toltaldac Drivers XLR, and preferred (b), with better detail and no downside, so I sold the CH Precision L1+X1.
So I would say that the digital volume control of the Totaldac DAC is quite good.
After the upgrade to Totaldac Sublime DAC, I preferred (c) Taiko Extreme -> Totaldac Sublime DAC -> CH Precision M10. The Totaldac Sublime has a better output stage, that for me, sounded better than the Totaldac Drivers mk2.
After the upgrate of the drivers to 2x Totaldac Sublime Drivers, I then preferred (d) Taiko Extreme -> Totaldac Sublime DAC -> 2x Totaldac Sublime Drivers XLR -> CH Precision M10
I hope to do the live clock upgrades soon.