What if a high end speaker measures really badly?

@amtprod  I think @audiokinesis  was making some of those arguments, that some of these deep valleys may not actually be something most of us would become aware of.

No, if you like the sound of speaker Y vs. X buy Y, absolutely.  The one caveat is that long term and in room listening matter more than short term auditions. 

I don't think you can fix the nulls with DSP at all, but mid-treble I think could definitely be cleaned up at least a little. 

I also don't necessarily think perfectly flat is great, but allow for some discretion in bass bumps, and treble lifts.  So, if we squint and really apply major smoothing to the chart these speakers they do seem to be inspired by Fletcher-Munson curves and could be excellent mid-volume speakers.  Perhaps that will alleviate the otherwise poor (for a 3-way) sensitivity ratings?

@amtprod The DSP fixed frequency response and killed the magic.  DSP isn't the answer.

PS - I should point out here that I think we sometimes make the mistake  of auditioning speakers at different volumes than we actually listen to at home.  If you listen loud, audition loud.  Otherwise, spend most of your time listening at the volumes you normally would.

Kind of related to this is that a well treated room improves low-volume listening and decreases listening fatigue.

@erik_squires AND you get time and phase correct, very flat to beyond 25 k and near perfect impulse and of course excellent waterfall ( unless you like cabinet colors…. )…. since 1977….

And re the bass eq you speak of is available in the Sub 3 starting at $3k…. 

Disclaimer - i have Treo CT / sub 3 and 7 mk 2