ATC and Loki

The downside to low level listening to accurate speakers is a lack of bass.  It only sounds right if you're listening at levels closer to realistic for a real performance.  

I don't mean they lack accurate bass, just that they sound like they do at low listening levels.  It only makes sense for accurate reproduction at inaccurate levels to sound inaccurate.  It is inaccurate.  You can make it sound more accurate by countering the level distortion with frequency response distortion but true accuracy would include accurate volume.  A lot of speakers have some exaggerated bass, at least at low volumes, and they sound better at low volumes because of it.  

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

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.