"EQ" stands for the compensation and refers to verify the presence of different sound frequencies in your guitar signal. If you have a stereo or an iPod to listen to your music, you probably use a "EQ" levels of control for bass and treble. There are two basic types of EQ pedals, you can use with your guitar:

Graphic EQ

Graphic EQ is the most common type of guitar EQ. This increase or decrease certainfrequencies by pressing different levers (link) or down.Normally, the group covers the area around 20 Hz to 20 kHz (acting on different human hearing). Some guitarists use effects compensation drastically change the configuration of the signal to a profitable production "signature sound. Metal players like their sound signature is obtained by removal or reduction of all midrange.

You can also graphic equalizer to reduce certainfrequencies that cause feedback problems. In a specific area, a pair of frequencies naturally more important than others. The compensation is used to frequency differences in the workplace. You can also graphically because of some problems that cause the spectrum to reduce feedback. On the other hand, you can use some EQ frequencies to increase, in order to produce answers, because this is what you want.

Graphic equalizer occurs in different sizes – everything from 5bands and 31 bands. This is the best, with only the frequencies to get what you need to access more expensive tires and can cause more noise.

Parametric equalization

The parametric EQ offers more control over tone and a graphic equalizer, but it is difficult to use. It's called "para" because it lumps the parameters of a tone to match. These parameters are "frequency" (as in EQ frequencies, which are controlled by)"Section Width" (the number of octaves over which the variation of the signal) and "C" (the amount by which the signal is amplified or reduced). parametric equalization can also be used to remove noises like the sound of a guitar pick or the sound of fingers on the left.

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