What if a high end speaker measures really badly?

PS Everyone says "listen to these before you buy. My point is you may not catch these dips in a 15 minute audition.

@carlsbad2 

Yes, exactly. With a little experience, and a lot of misspent money/youth you’ll realize how extra-sexy speakers which reveal sounds you’ve never heard before, won’t actually last long in your listening room.

Oddly, where these speakers do measure well is in the horizontal dispersion. I’d expect they have an excellent and wide sweet spot, though not a very tall one.

Measuring per specific room is important. That gives a consumer an idea if these speakers will match his/her room.

This is an area where I think Vandersteen does it exactly right.  Uses an active woofer with built in EQ and a low pass filter for the amps.  In hotel rooms this delivered exceptional bass in a tiny room.

@deep_333  illustrates the deep, deep chasm between DIY builders and kit makers, modders vs. the high end industry writ large. 

"How can a speaker maker offer such poor performance for so much money" they ask, and sometimes I have trouble defending some models.

Be careful @erik_squires.  Another Eric may sue you for posting about measurements.   Oh, wait, wrong choice of words.  He may "litigate"...

Question: when FR graph such as those above show the db level at, say, 1khz, does the measured response include any other frequencies - such as resonances introduced by the speaker?

Also, I assume, the graphs alone do not reflect phase consistency between a fundamental and the harmonics typical in music, or differing decay rates for the fundamental vs harmonics. I believe these factors are critical for imaging and musical realism.