Passive speaker vs active speaker, what are the differences ?

The choice between a passive and active speaker is determined by your future use.

1 - Passive speakers : 

They operate via an external amplifier which powers them. The amplifier must be chosen according to the power tolerated by the speakers, for a quality listening experience. Note that this type of audio system takes up more space due to the presence of an external amplifier. This operation by module will allow you to gradually improve your system later.

2 - Active speakers

Incorporating an amplifier, they can be used directly with audio sources to listen to music. The fact that the amplifier is integrated can limit the customization of the audio system. They are an all-in-one.