Introduction to Effects
Overdrive, delay, reverb, chorus
Why Effects?
Effects (also called FX or pedals) modify your guitar's signal to change its sound. They can add grit, space, ambience, modulation, or completely transform the tone. While you can play perfectly well without them, effects are a core part of the electric guitar's identity.
Effects come as individual pedals (stomp boxes), multi-effects units, or built into amplifiers and software.
The Essential Four
Overdrive/Distortion: Adds grit and sustain by clipping the signal. Overdrive is mild (blues, classic rock); distortion is heavier (hard rock, metal). This is the most-used effect in guitar history.
Delay: Repeats your signal after a set time, creating echoes. Short delay (50-100ms) adds thickness; longer delay (300ms+) creates rhythmic repeats. Used in almost every genre.
Reverb: Simulates the natural echo of a room, hall, or cathedral. Small amounts make your tone feel "alive" rather than dry and dead. Almost always on at some level.
Chorus: Slightly detunes and delays a copy of your signal and mixes it back. Creates a shimmering, wide, watery sound. Iconic in 80s clean tones and jangly indie.
Signal Chain Order
The order effects are connected matters:
Guitar → Tuner → Overdrive/Distortion → Modulation (chorus, phaser) → Delay → Reverb → Amp
Distortion before delay means clean repeats of a dirty signal. Delay before distortion means the repeats themselves get distorted (usually muddy). The standard order keeps things clean and defined, but rules can be broken for creative purposes.
Tips
- Start with overdrive and reverb — these cover the widest range of sounds
- Less is more: subtle effects often sound better than extreme settings
- You don't need expensive pedals to start — amp simulations and free plugins work well
- Effects don't fix bad technique — get your clean tone sounding good first
Practice Exercises
- If you have an electric guitar and amp, experiment with the amp's built-in overdrive and reverb
- Play clean, then add overdrive — notice how it changes sustain and feel
- Try a free amp simulation app or plugin and experiment with the four essential effects
- Listen to songs and try to identify which effects are being used