Effects can be used to modify the tone, pitch, or sound of a
guitar .
Effects are available as
effects pedals , built into
guitar amplifiers,
guitar amplifier simulation software, and rackmount preamplifiers or processors.
Effects and signal processing form an important part of the
electric guitar tone.
Guitar effects are also used with other instruments such as
electric bass , which are designed to work with low-frequency tones of the
bass. These are
bass effects.
Effects are also available for
acoustic guitar in the form of
acoustic effects pedals .
Multi-effects units bring a large number
effects together in a single unit and offer great value for money.