Music is an important component for the wedding. Speakers are responsible for delivering the sound. You will need to have a good speaker to get the right feel of the music. A good speaker will deliver the sound like the way it is in the source file. It will not add anything to it. If it changes the sound in any way, then it will not be considered to be a good speaker. A good speaker is supposed to deliver the midrange without any harsh sound.
A good way to judge whether the quality of the speaker is good or bad is to listen to the chorus songs. If it is a good quality speaker, then you will be able to distinguish between the basses and tenors. If the quality is not up to the mark, the voice will be blurred. Before buying the speaker, you need to check the centre channel carefully. There has to be a balance between the center and the front right and left speaker. It will be easier for you to distinguish between a good and a bad speaker if you are used to listening to the loudspeakers.