Amplification refers to the process of increasing the strength of an audio signal, typically to drive speakers and produce sound at a higher volume. In the context of guitar and bass, amplification involves boosting the signal from the instrument to a level that can be heard clearly, often with the added benefit of shaping the tone through various preamp, power amp, and speaker cabinet combinations.

Amplifier pedals and amp simulators are commonly used to replicate or enhance the sound of traditional amplifiers in a more portable or controlled format. Well-known examples include the SansAmp by Tech 21 and the Eleven Rack by Avid. Amplification is central