Thank you for your input.
In my case, I stick to "right person in right place" policy/approach in amplifier selection as you may find my latest system setup
here and
here.
Also please find
here for the summary of my long and intensive amplifier exploration journey.
Currently I use DAC8PRO quite nicely for L&R sub-woofers (CH1+CH2), woofers (CH3+CH4), midrange (CH5+CH6) and tweeter+super-tweeter (CH7+CH8).
My sub-woofers has built-in powerful amp in it, and I already have four amps dedicately driving woofer, midrange, tweeter and super-tweeter.
Consequently, what I would like to achieve in the near future would be jkust to drive separately in digital domain for tweeter by CH7+CH8 and super-tweeter by CH9+CH10 and would feed these 10-CH into 10-CH capable multichannel DAC, like MOTU 16A.
In the long-span future, I may consider expanding my system with more SP drivers for any kind of surround system where I will need additional DAC channels and amplifiers (again "right person in right place", in reasonable cost!); even in consideration of such future expansion, I believe 16-CH in 96 kHz 24 bit would be more than enough.