Posted by Wayne Parham on August 21, 2002 at 01:11:15

In Reply to: JBL 2446H question posted by Jerry Parker on August 20, 2002 at 22:37:58:

If you have two sound sources that are 1/2 wavelength apart, they will combine destructively and form a null. So when a radiator is larger than 1/2 wavelength, it has this kind of thing happening across its surface. The net effect is that the radiation pattern begins to narrow as frequency goes up.