Changes

''Wah Pedals'' are named for the distinctive "wah wah" sound they produce. Essentially a wah pedal is simply a band-pass filter with its center frequency manipulated by rocking the pedal. This focuses the guitar tone on a certain range of the harmonics of the direct guitar signal. When used in front of distortion, it not only produces the characteristic "wah" sound, but can also be used to change the nature of the distortion, similar to a boost pedal. Some artists prefer to use a "cocked" (fixed position) wah pedal as a boost.

== Signal Chain Placement ==

99% of the time, the wah pedal is placed 1st or close to first in the chain, before any kind of amp or pedal distortion, or compression. This gets the characteristic "wah wah" tone. For a clean guitar tone, the wah can be placed further back in the chain, even as far as the amp's effects loop without a dramatic change in tone. It may simply sound a little unnatural or odd being after some compression, but overall has the same effect. Placing a wah after distortion is a different story, creating a noticeably odd and filtered sound - think '''''Rage Against the Machine''''' - ''Bulls on Parade''.

[[Category:Gear]]