ATC and Loki

How do you properly solve the problem of speakers not sounding right because they're not being played at accurate volume?  

Avoiding questions asked by posing other questions is typical on these forums.

I'm trying to make an abstract argument rather than personalize this and I don't think my personal experience is all that relevant.  I've got a few systems.  I've got ATC 110s in a family room system, Thiel 3.7s in what I'd call a den I guess, and also some Vienna Acoustics Mozart Grands I use as computer speakers.  

How do you properly solve the problem of speakers not sounding right because they're not being played at accurate volume?  Our ears don't hear all frequencies equally so what sounds right at 90db sounds bland at 80.  I agree that EQ is a good way to mitigate this.  My Thiels sound better at low volume than my ATCs.  I'd guess because there are design tradeoffs between speakers that need huge dynamic range and those designed for moderate max volume.  

OP here.
JON, your understanding of this matches my understanding of this, and I appreciate your efforts to keep comments impersonal. By that, I don’t mean to vilify anyone who is taking a different approach. I’m just commenting on what I appreciate.
I am in no way trying to comment on any objective reality in relationship to acoustics or speakers or ears or anything along those lines. I have no expertise with things like that. I’m working on the basis of my own ears and my own speakers in my own room and making surmises about what’s going to work best for me, hoping that others have been down this road and can share things that I will find helpful.I understand that there are various elements in this topic that are debatable and that debate is often fun or Educational, so I don’t mind if anyone wishes to continue this thread along these lines because that has value for them, if not for me.

You know, some systems sound fantastic at all volumes. My current system does sound very good at low volumes. But I have never gotten a handle on what the parameters are of good sound at low volumes… is it mostly the speakers… or what. But over the years I have heard some professional reviewers discuss it. Might do some Google searching and see if you can find useful info.