Effect units are devices that affect the sound of an electric guitar or bass guitar when plugged in to the electrical signal path of the sound.
See also stomp box.
Effects include:
- Gain-based
- Overdrive
- Distortion (see Fuzz box)
- Tone-based
- Wah-wah
- Pitchshifter
- Time-based
- Volume-based
- Tremolo(see below)
- Tremolo(see below)