Clean:  The lack of any distortion or tone changes of any kind.  This isn’t as easy as just not using guitar effect pedals.  Many amplifiers have reverb and distortion built into their sounds.  In most cases “Clean” is used when hearing just the guitar through the amplifier without effect pedals.


Video Explanations:

Video: Clean vs Dirty Tone | Guitar | Minute Music School

Video: Fender Play LIVE: Clean vs Dirty Tone | Fender Play | Fender

Video: That Pedal Show – Thoughts On Clean Sounds, Part 1


Written Articles:

Article: Tone Tips: Clean Tones can Create Bigger Rock Guitar

Article: Tone Tips: The Nitty-Gritty on Running Clean


Fifty Favorite Effect Pedals for Sale: