More power for better sound at low volumes?

I have found the most engaging sounding amplifiers to be those with lower power. Just my experience.

What do you want the system to do better at low volume? Do you have an SPL meter to measure what you consider low volume?

A good set of headphones is your answer.

A lot of vintage gear used to have loudness controls and other tone control features that due to how the human ear works were useful at low volumes sometimes but required manual interaction to activate/use.

Its possible that this could still be part of an amplifiers design, ie internalized auto equalization in essence for the purpose of optimizing sound at all volumes.

Sounds like at least a couple makers might do this but do not know for sure. Some might advertise as a feature or some might keep it under wraps so as not to offend audiophiles that object to equalization solutions but like good sound at all volumes.

IF done well, I think this could be a good thing/feature if any makers want to fess up?

A Audio Research LS9 is the answer.