Should Speaker Manufactures provide a Frequency Response Graph?

Manufacturers should include specs and explanation of how measurements were made for reference. It adds credibility for their design philosophy, then have a listen. Why would anyone want to look a Porsche 911 specs or its track performance? They are just measurements, my family vehicle feels faster. 

"Why would anyone want to look a Porsche 911 specs or its track performance? "

That is precisely the point. Why do you need to look at 911 specs? We all knowit is a great car.

@erik_squires wrote:  "I'd much rather see off-axis frequency plots as done by Stereophile and others, as well as dynamic range plots."

Yes!  The off-axis information in particular is imo extremely useful.

I WISH John Atkinson did not "normalize" his off-axis curves, as that makes it harder to see the overall picture of what's REALLY going on.  I think that for one or maybe two issues he posted off-axis curves that were NOT normalized to the on-axis curve, but then he went back to posting normalized curves.

Duke

"Why would anyone want to look a Porsche 911 specs or its track performance? "

That is precisely the point. Why do you need to look at 911 specs? We all knowit is a great car.

Stop comparing muscle cars and "high end" audio. Fooling someone with cars is a lot harder to do.

Junk sound gets priced at 100k quite easy.

This has to be the greatest video ever made 😁

I have never been able to discern the voicing of a speaker from performance specs.  

Heck, even the humidity levels in my room change the sound. Let alone all the other variables. 

I have concluded that performance specs are for bench racing.