Effects loop

Effects loop

An effects loop is a series of audio effects units, connected between two points of a signal path; usually between the pre-amp and power amp stages of an amplifier circuit, although occasionally between two pre-amp stages. The two principal uses of effects loops are in recordings and in instrument amplifiers.

Most guitarists use floor pedal effects between the guitar and the amplifier. Or they use rack effects through the amplifier effects loop. Recently, amplifier manufacturers have been including a level/gain control with the effects loops to allow for the use of floor pedals through the effects loop; rather than in-line between the guitar and amplifier. This allows for more tonal control of the amplifier. GSP Research Group out of Oak Ridge, Tennessee has invented a circuit that would allow guitarists to choose to switch the placement of pedal effects between the guitar-to-amp signal line and the effects-loop signal line. It will enable players to switch each effect they have either "in-line" or through the "effect loop" while still playing. This opens up a whole new spectrum of sound possibilities at the artists feet.

ee also

* effects unit
* amplifier
* guitar


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