Every person who is fond of music desires to own good quality speakers that create amazing sound. But most of the people lack knowledge about how exactly it works.
The device which converts amplified electrical signals into air vibrations that a human can hear as sound is known as a speaker. There are a wide range of speakers in various sizes, shapes, models and types. But they differ on the basis of the audio spectrum. Each speaker has different capabilities for reproducing audio spectrum. Vibrations are created with such speakers which is same as the electrical signals.
Speakers are mainly of two types, distinguished on the basis of where the electric signal gets amplified.
- Passive speakers are the ones which offer the basic functionalities of a speaker. For producing sound, such speakers need a separate power amplifier.
- Powered speakers are those which offer an internal power amplifier. These are also known as active speakers. Due to the in-built power amplifier, such speakers connect directly to a mixer, and hence a lot of cables are reduced. But you do need an electricity power cable.
If you are looking for setting up a PA system in a simple and easy manner, then you should prefer powered speakers that need fewer connections. But then, a high level of freedom is offered by a passive speaker and thus one can easily move them around or change them. It is better to check the impedance, speaker size, sound pressure level and power rating before finalizing a speaker.
Various other speakers available are main speakers, subwoofers and monitor speaker. Listeners or audience get most of the sound with the main speakers. For boosting the sound, subwoofers are used with the main speakers which are good for low frequency sound playback. Monitor speakers are used to monitor the sound. They can be placed in various ways depending on shape or on the surface or on a stand.