most uniformly distributed frequency response across the room
similarity to musical instruments sound radiation
same sonic experience / frequency balance / soundstage in every position of the room
in nature, all other energy radiations are omnidirectional: light, heat, gravity
most "natural" sound
the least affected by room acoustics
What are the key disadvantages of directional and horn speakers?
when we move in horizontal plane, we have different frequency response - away from "sweetspot" we hear less high freqencies and a bit less mid frequencies
as a result, away from the sweetspot the soundstage collapses
The comparison table of some omnidirectional speaker models: