Dynaudio Emit 25C Centre ChannelEmit 25C Centre Its been said that the soundtrack is up to 80 per cent of the movie going experience. And the centre speaker is the most crucial part of that. Say hej to Emit 25C It could be argued that the centre channel is the most important part of any surround sound system. Its where the lions share of dialogue comes from in a movie, and its where the focal point of the music often comes from in a multi channel mix. Its crucial to get it right.