Active and passive loudspeakers
The speakers have a built-in sound amplifier and do not require additional sound reinforcement devices (sound amplifiers). A separate power supply is required.
Passive Loudspeakers are therefore used in conjunction with an external power amplifier.
The choice of one or another type of loudspeakers depends on specific conditions. For example, in the case of installing ceiling speakers in a suspended ceiling - it will most likely be a variant of passive speakers, as they are significantly lighter, and to control them through an amplifier.
At the same time, active speakers will be more convenient if there is no space for an additional rack with equipment and a place for an operator in the hall. Despite the larger size, such speakers are easier to move when changing the configuration of furniture layout, etc., they are easier to control and operate.