This chapter deals with the specialized circuit blocks that make up a mixing consoles. Some functions, such as microphone amplification, line input and output, and equalization, have already been explored in previous chapters. The other useful blocks are presented here in the order that a signal encounters them as it goes through the console, but many of them are applicable to all the various kinds of module – input channels, groups, and master sections. For example, fader postamplifiers and insert points will be found in all three types of module.
Mixer Bus Systems
In all but the smallest mixers there is a need to connect together all the modules so they have access to the mixing buses, power-supply rails, and logic ...