ABSTRACT
This chapter focuses on analog mixers and digital mixers that are made of hardware. A mixer can be divided into three sections: input, output, and monitor. In some mixers, a phone jack input is switchable between low impedance and high impedance. After entering the mic connector, the microphone signal goes to a mic preamplifier inside the mixer. The TRIM or GAIN control adjusts the amount of amplification in the mic preamp. Some mixers have no input selector. The mixer processes whatever signal is plugged in. The aux or aux-send function sends some of the input module's signal to equipment outside the mixer. One way to set up a monitor mix is with the aux knobs. Some mixing consoles have voltage controlled amplifier (VCA) group faders. A mixer has either VU meters or digital level meters. A digital mixing console accepts analog or digital signals.
