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Great name, Spasticteapot. But not so great a concept. Julian Hirsch believed that if two pieces of audio equipment measured the same, they sounded the same.
I'm not too familiar with Hirsch, but I might point out that until fairly recently, the only two parameters measured were on-axis frequency response and distortion.
To get an accurate picture of a speaker, you need to measure:
-Off-axis response in both the horizontal and vertical axes.
-Phase and group delay both on and off axis.
-Energy storage ("CSD")
-Power compression
-Floor bounce
-Enclosure resonances
And the list goes on.
In any event, it *can* be proven that speakers that measure well in ALL of these parameters do, in fact, sound better than those that don't. In fact, a very large amount of work has been done find which imperfections are least noticeable, and which are most odious. Weighing the entire compiled knowledge of the AES against the advice of someone who has never designed a speaker...well, I'm going to weigh in favor of the guys with the strings of letters after their names.
On the subject of "designing by measurements", I might consider the following measurement-based designers:
John Krutke (who has designed pretty much every kit Madisound sells today - all of them excellent)
Dennis Murphy (who designed the SongTowers, which have won a small pile of awards)
John Marsh (who designed the ModulaMT 2-ways that keep winning DIY competitions, the Lineup 3-ways, and a billion other speakers)
and, last but not least:
Sigfried Linkwitz. You know who he is, you know what he does, and you know his Orion speakers have won a huge number of awards.
All of these designers do a complete computer simulation before taking a single driver out of the box. While the designs are often tweaked slightly for optimum sound quality, they rely very heavily on computer simulations to provide a workable design. You'll see similar results in a variety of commercial products, notably including the Yg Acoustics line that keep winning big piles of awards and those lumpy peapod things that Stereophile reviewed so well.
Amplifiers aren't exactly perfect, either. While all amplifiers are more or less the same into a nice neat resistive load, the only thing that actually provides this is a simple resistor which, last I checked, doesn't allow you to listen to music. Speakers (especially those with passive crossover) are a nightmare requiring tremendous stability, a low output impedance, and a large number of other fiddly parameters. Furthermore, some people very much like the 2nd harmonic distortion offered by tube amplifiers and some "class A" solid state gear.
In any event, my favorite speakers to date are a pair of Cliffhanger Bulldog 3-ways, a speaker noted for very flat frequency response both on and off axis. Before that, I had a pair of KRK 6000s - studio monitors. I've also heard a huge heap of very expensive speakers I wouldn't use for anything but a boat anchor.