Turn the treble up to 6 to start with to avoid the tone becoming muddy. The higher the treble is, the sharper and more defined the sound will be. Treble: this determines the high frequency sounds.A relatively low mids-setting is characteristic for Metallica, which is often described as “scooping” the amp. Mids: this refers to the mid-range frequencies.This should usually be quite high to sound like Metallica, so turn this up to 8 to start with. High bass results in a fuller and “boomy” quality to the tone. Bass: determines the low frequency sounds.

Some amplifiers will just have an “EQ” control, whereas others will allow you to adjust the bass, mids and treble settings individually.

The EQ settings allow you to shape the tone of your guitar.