Quote Originally Posted by GM View Post
Have you measured or seen polar plots of them with/without? In theory they should affect it just as is shown in Cohen's book. GM



I don't have plots but I do have several 811's and I did cut the fins out of one. I also filled in the casting radii between the top and bottom halves on a pair. I found no audible difference between the fin / no fin versions within normal listening distances. I listened to both config's and really didn't notice much differnce between them. Checking by ear is always a crap shoot anyway.