Which speakers have wide dispersion?

Thanks for the mention, Shadorne!

At this point only one of my speakers would qualify as "wide dispersion", and that's my big Dream Makers, which are bipolar (kinda like their designer). But instead of the pattern being very wide primarily in the forward hemisphere, it's 90 degrees wide both front and back.

I chose this configuration because it's desirable to have as long a time delay as practical before the onset of the increased reverberant energy, and in most rooms the geometry works out to give a longer time delay if the extra energy is directed to the rear rather than to the sides.

As a longtime SoundLab owner and dealer, my observations echo those of Twb2. In fact, my bipolars deliberately seek to emulate the radiation pattern geometry that SoundLab designer Roger West used in the big A-1; that is, 90 degrees wide, both front and back. I received a Golden Ear award from Robert E. Greene for my bipolar, so maybe it works.

Duke
dealer/manufacturer

Drew, note that the SoundLabs espoused by Twb2 do not suffer from the narrowed radiation pattern one would normally expect from a large panel. This is because the diaphragm of the SoundLabs is a faceted curve, which radiates over a 90 degree arc (reduced to 45 degrees on some recent models to improve efficiency).

Interesting that you mention Earl Geddes - my own efforts owe a great deal to his work, though I don't think he approves of my bipolar variation.

Duke
dealer/manufacturer