CHAPTER 23
EQUALISERS AND MIXERS
The output of phonograph cartridges and tape player heads is not flat. So, there is a need for a certain amount of tonal modification to make the reproduced sound more believable. In all but the simplest installations, equalisers, mixers and filters are needed for one reason or another. In the simplest installations the functions are necessary, but they usually are built into the single-unit amplifier.
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