Sure, there was a Popular Electronics article about a project called "The
Sweet 16". It was composed of 16 el-cheapo AM radio speakers in a minimal
box. This was around 1960. I heard one at the time in a local electronics
store, and thought it was some kind of a sonic disaster. It realized every
cliché about trying to make a silk purse out of a pig's ear etc. that you
ever heard. Later on there was a sequel project called "The Sweet 16+1". It
added a cheap tweeter. This was basically trying to put lipstick on a pig,
polish a turd, you name it.
In the day of "The Sweet 16", remarkably little was generally known about
loudspeakers and loudspeaker systems, compared to what is known today. So,
it can be excused on the grounds of general ignorance. The first problem was
that the speakers the Sweet 16" was made out, of were systematically
low-fi. The article argued that by combining many of them, the random
variations would be evened out. In fact the speaker drivers were
consistently low-fi.
Then there was the problem of the Sweet 16" speaker array itself. When
speakers are placed close together, a variety of complex interactions
result. These tend to add many more frequency response variations on top of
the many that might be present in the individual drivers themselves.
It turns out that there is a similar array that can work, but it has 25
speakers, not 16. It's called a Bessel array N=25, and details relating to
is can be found in some posts I made in the past few months. I recently
built a Bessel Array N=5, and it works, but.
When all is said and done, the Bessel array N=25 does not deliver 25 times
the sound of one of the speakers that it is composed of. Some of the drivers
must be connected with reversed polarity. The performance of about a
quarter of the array is sacrificed to make the rest of the array work
reasonably well. In the final analysis, you end up with a system that
performs pretty much like just one of the drivers if you sit some distance
from it. Close up is still not a pretty picture. However it does get
considerably louder if you apply much more power.