Editing Instrument amplifier (section)

===Keyboard===
A [[keyboard amplifier]], used for the [[stage piano]], [[synthesizer]], [[clonewheel organ]]s and similar instruments, is distinct from other types of amplification systems due to the particular challenges associated with keyboards; namely, to provide solid low-frequency sound reproduction ''and'' crisp high-frequency sound reproduction. It is typically a combination amplifier that contains a two, three, or four-channel [[Electronic mixer|mixer]], a [[pre-amplifier]] for each channel, equalization controls, a [[power amplifier]], a [[Loudspeaker|speaker]], and a [[Horn loudspeaker|horn]], all in a single cabinet.

Notable exceptions include keyboard amplifiers for specific keyboard types. The vintage [[Leslie speaker]] cabinet and modern recreations, which are generally used for [[Hammond organs]],  use a [[tube amplifier]] that is often turned up to add a warm, ''growling'' [[Overdrive (music)|overdrive]]. Some [[electric piano]]s have built-in amplifiers and speakers, in addition to outputs for external amplification.