A PA Mixer is used in Live events and on a public address system to evenly mix and distribute the input audio signals to provide the best sounding output for the audience. It is a device that connects two or more audio signals from sources such as microphones, guitars, instruments, CD players, etc. A Mixer is used to combine different signals from sources, adjust their levels, enhance the sound using signal processors like effects, EQ, compressors, and the output is given to speakers, headphones, recording equipment, or other auxiliary (AUX) outputs.

Types of Mixers:

Analog Mixer - Analog mixers adjust the volume and tone of input audio signals. Most of the control knobs and faders are arranged from top to bottom, so it is easy to understand the signal flow and what state the audio is in. Operating analog mixers is normally an intuitive process.

Digital Mixer - Digital mixers process the input audio signals and adjust their volume and tone using digital signal processing(DSP) technology. Various kinds of tone control that would be impossible using analog equipment can be applied using digital processing. Digital mixers can store the positions of faders and knobs, and recall these positions in an instant. The faders and knobs perform various functions, so the unit itself remains compact, even if the number of channels increases. Generally, a digital mixer will require more experience to set up effectively but will offer far greater functionality than an analog mixer.

Powered Mixer - Powered mixers are analog mixers with built-in power amplifiers. For this reason, sound can be played with the mixer directly connected to speakers. In cases where the same equipment is always connected, powered mixers can be used by simply turning the power on, so operation is simplified and convenient.