Which speakers have wide dispersion?

It sounds more natural - direct and reverbernat energy match. Sound is good in a much larger sweetspot. Sound is easy to listen too and relaxing as opposed to the headphone feeling you get with narrow dispersion speakers. You can enjoy the sound withouthaving to lock your head in a vice.

Speakers that follow this principle are many. Audiokinesis, Energy, Mirage, PSB, Merlin, Axiom, just to name a very few...it is the main reason that dome tweeters are so successful. It is one of the major challenges in a midrange - especially in a two way.

Many speakers do not - but to name them would cause unnecessary flames.

Pedrillo - wide dispersion is possible in a conventional speaker and it is also possible in an omni directional speaker (Beolab 5, Ohms, MBL)

However, contrary to popular belief - a large panel tends to have a narrow dispersion and suffer from lobbing - this tends to result in a smaller sweetspot. Of course the back wave from a panel creates an impressive ambience but this quite different from a point source with wide even dispersion. IMHO.

Because Omni's and most panels excite a backwave towards the wall behind the speaker they will be more restricted in terms of placement - however they will have a wide sweetpot.

Panels tend to have a smaller sweetspot beaming/lobbing and are also restricted in placement due to the backwave.

Originally I thought your thread was about wide dispersion - my initial comments refer to that. Wide dispersion gives a natural sound form a wide variety of positions.