Hello, all. I acquired a pair of W4-1337 SDF Tang Band 4 “full range drivers some time ago and I want to put them to use. I have a laser cutter and intend to make a design similar to the picture shown to put in my office. The issue it seems, is that the basis of design uses a flared line, by my best math its no where the 1\/4 wavelength, and damping looks to be placed conveniently, but probably not adequately. Am I right in thinking that the flared design will raise f3? That doesn't seem to be desirable- especially in a small package. A tapered design should lower f3, right? Do you calculate the 1\/4 wavelength on the actual f3 of the driver or the anticipated f3 based on the alignment? I'll be laminating the whole thing together- the middle panels could "house" the damping material hiding it from view? I mostly want to play with the new laser cutter and put the drivers to use. Thoughts, concerns, or should I go back into hiding?