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→Frequency Response
==== Frequency Response ====
Any signal can be broken down into an infinite number of amplitude levels for an infinite number of frequencies. Many devices will tend not to equally affect all frequencies - this affect on the signal can be called its frequency response. Speakers often have unique responses, and will often display a frequency response graph - a visual representation of how it affects frequencies input into it. All devices have their own responses, but many (most obviously amplifiers) include EQ controls to vary this.
==== Fuzzy ====
Refers to a distorted tone where most of the break-up is occurring in the lower frequencies. Fuzzy tones are known for an unfocused or loose bottom end and a buzzy high end. This can leave it difficult to discern the pitch of fast passages in lower registers, and thus fuzz is often avoided in metal. Additionally, simultaneous notes on different strings tend to "fight" each other for audible dominance. Chords tend to get extremely distorted and difficult to discern. Fuzz is often used in small amounts or in lead settings, although some alternative, indie, and post-rock musicians tend to enjoy the out-of-control tone it can generate at high gain levels.
==== Graphic EQ ====