True. One day the will make an electrostatic horn loaded speaker that can get to 140db!
I know you were just "making a joke", but "putting a horn" on it is something that is misunderstood by many people.
A horn is actually a bandpass type device. It has limits on the top end (due to the size of the entry into the horn), and the low end (due to the length, expansion rate, mouth size etc).
In reality you need different expansion rates for different parts of the freq spectrum. Hence the reason a simple horn on a full range single loudspeaker does not work as well as it should.
The higher freq need a faster expansion rate than lower freq. Mids are in the middle
It is the "proper useage" of horns that make them actually work.
Size matters (both large AND small)-in all kinds of ways with horns.
In order to get get gain up high-the entrance into the horn has to be small-hence the reason you don't get much gain up high from a 2" compression driver. A 1" into a horn will actually have more horn gain in the top octave or so. And since it already has a greater output (due to higher sensitivity and lower mass) it can actually produce MORE SPL than a 2" driver-at the higher freq. Down lower in freq it is a different story.
Everything is about tradeoffs-so it is important to understand what is going on-so the proper tradeoffs can be made and determine what is most important for a particular situation/usage.
