This product makes no sense. An omnidirectional center channel contradicts the fundamental purpose of a center channel -- to firmly anchor dialogue and enhance clarity and intelligibility (for movies) or center-mixed singers/instrumentalists-- in the center of the image, so it doesn't default to the left or right channel with off-axis listening, whether in a 3-channel or multi-channel setup, Dolby Digital 5.1 and its extended iterations.
Adding omnidirectional or diffuse energy to a center channel will only degrade dialogue intelligibility and and reduce stable center-channel imaging.
Alan
