What tests would you like all speaker reviewers to do for their reviews?

I’d like to see an impedance graph that covers the entire frequency range.  This “Nominal Impedance” number that’s commonly quoted is next to useless IMO, and impedance levels and frequencies are critical to know in choosing the proper amp. 

Exactly @tomic601. Danny Richie performs those tests on all the loudspeakers he gets in (and has designed and offered as kits), and displays the results in his GR Research YouTube videos. Very illuminating!

I’d like them to describe their preferred sound types - we all have a preference - up front. Then I’d like them to say how the speaker under test satisfies their preferences. How can they honestly do anything else?

@jasonbourne52

I hadn't heard of this test.  Does anybody perform it in their reviews?

+1 soix