Hi Rustler,
I tend to find that the lower the noise floor, the lower the distortion, the better my system sounds at low volumes. Mainly because even at lower levels...i can still hear everything on the tune...from bass to high.
Given the amps you are considering, both are plenty powerful for lower levels into [almost] any speaker load you could imagine.
I would probably focus on very, very quite noise floor. Harder to measure, but that is where i have [by far] found the greatest improvements in my ability to listen at low levels.
I tend to find that the lower the noise floor, the lower the distortion, the better my system sounds at low volumes. Mainly because even at lower levels...i can still hear everything on the tune...from bass to high.
Given the amps you are considering, both are plenty powerful for lower levels into [almost] any speaker load you could imagine.
I would probably focus on very, very quite noise floor. Harder to measure, but that is where i have [by far] found the greatest improvements in my ability to listen at low levels.