3" is not close enough for "near field" and not far enough for "far field". That is probably why you get some weird cancellations. Maybe from the mic it selves or from the mic stat.
When I do near field I set the mic only 5mm from the center of the woofer cone, dustcap. To get "far field" you normally need to be at least about 20" out.
Kind regards
//Rob
Originally Posted by yggdrasil
If my memory serves me right nearfield measurements should be taken at 1/2 inch (1cm).
Thanks fellas. I didn't realize it had to be that close. That's damn-near Xmax! (no, i'm not measuring that loudly)
Originally Posted by grumpy
I believe only one driver is operating (post #3).
Yes. Thanks
DIY Array, 2242 sub, 4408, 4208, Control 8SR, E120 Guitar cab, Control 1, LSR305.