do not ignore documented science, ANY darn good speaker, essentially flat at normal volumes, will sound like it has weak lows and weak highs at very low volume. It doesn’t, your ears sensitivity changes at low volume.
IF a speaker sounds good at very low volumes, without compensation, then it has to have weak mids, i.e. boosted lows and boosted highs, exactly what is needed for the majority of human’s ears as documented by Fletcher Munson.
Played at normal volumes, it would sound boomy and too bright at the same time, i.e. it’s weak mids would be revealed by your ears when they are at their normal volume sensitivity.
All kinds of features have disappeared during 'pure' 'direct' 'minimal' trends, and frankly now getting away with the low cost of missing features.
I'm 76, in my youth ALL equipment came with 'loudness' compensation, both a stupid name (it's low volume compensation) and often very poorly implemented and explained. Balance, tone, Stereo/Mono/REV mode switches ..... tape or processor loops, all gone in a lot of todays offerings
To get remote volume of any non-remote equipment, in my case my full-featured McIntosh mx-110z tube tuner preamp, I use a Chase Remote Line Controller RLC-1. Aside from remote volume and balance, it it has automatic and progressive bass boost for very low volume use. It requires proper understanding and use, but it's implementation works perfectly for me. It doesn't boost the highs, I find maintaining the bass is what keeps music involving for me the rare times I listen that low.