Altec horn drivers

[Shimmeron]

I'm confused about the numbers used on Altec Drivers. So, for example what are the differences between 805-8A, 806, 807 and 808? Do these specialize and is there a posted chart?

[CONVERGENCE]

I'm confused about the numbers used on Altec Drivers. So, for example what are the differences between 805-8A, 806, 807 and 808? Do these specialize and is there a posted chart?

Here is the web site for the chart.

http://www.wmeckle.com/INTRO/SMALL/Altec.htm