If you are familiar with a recording, you can use it to gauge some aspects of sound quality, but no single recording will ever paint a complete picture of a speaker's character.
Agreed but I would want to stress that some important aspects of a speaker like bass which is relatively expensive to reproduce and what TLS calls the speech discrimination band are easy enough to evaluate.
My favorite tune to use for bottom end is from The Wall Flowers,
One Head Light because of a rolling bass line that I've seen make speakers at a Magnolia become unglued in short order. A PETT guy, dlr, has a full range, DIY, dual 10", omnipolar rig that gives the bottom end more detail than I've ever heard.
Dire Strates
Money for Nothing has Sting doing backup vocals. I remember the rig I was listening to when I first realized that. It was an Oprah ah-hah moment for me. Up until then I was only ever using the tune for the crazy intro finishing off with drums and then the guitar riff to start the off the song for real. The demonstration of vocal clarity set the bar from there on in.
I can't recall the name of the tune by Chris Isaac (but I had been listening to it a lot) showed me how Anthem's ARC took the life out of the song regardless of the volume. As I said, familiar music is a crude tool and as you point out, the picture is incomplete but it sure beats not having nuthin'.
As many reviews as you've done lately, you must put some faith in your own initial opinion of a speaker. I'm not talking about evaluating components like amps or DACs here because everybody knows H/K watts are to die for. j/k. Hey, PENG.
I am able to get a rough idea of a speaker's power handling by turning it up to the point of distortion and then seeing how loud I have to yell to be heard. I know, an SPL meter would be better and simple enough to bring. I don't know why I haven't done so in the past but I'm pretty much done auditioning speakers for now.
Thanks for the article. I'll have my blose lovin' nephew read it as reference material for his first speaker purchase. It'll give him some food for thought.