Amplitude Effect - Distortion
Distortion - Simply distorts or destructs an audio signal. Similar to that of a rock distorted guitar.
Frequency Effect - Wah -Wah
The most famous of all guitar effects.
Created with a Band-Pass filter which allows only a narrow band of frequencies to pass through.
When the effect is swept (with a foot controller) it moves through the different regions of the frequency spectrum producing the "wah" effect.
Hybrid Effects - Rotating Speaker or Leslie Simulator
This effect simulates the large wooden box with spinning speakers in creating the effect that made the Hammond B-3 a legendary instrument. Similar to a vibrato or tremolo effect.
Sound Systems - Speaker Components
Most speaker enclosures contain several drivers (individual speaker components), each of which is designed to reproduce a specific range of frequencies (lows, mids, highs).
The following are most common speaker drivers and components:
Subwoofer - Produces very low frequencies
Woofer - Cone shaped driver that reproduces frequencies from 30 - 50 Hz up to 800 - 1,000 Hz. Speaker sizes range from 6” - 18” + in diameter.
Midrange - Not used in all systems but are used to bridge the gap between woofers and tweeters. 800 Hz to 3,000 Hz
Tweeter - Handles the upper end of the audio spectrum. 1,000 Hz - 2,500 Hz up to 20 kHz.
Horn - Often used in conjunction with a high-frequency driver in PA systems. Allows for greater control of the direction and dispersion of the high frequencies.
Crossover - Is a device that splits the full audio spectrum signal into separate frequency bands so that each band can be sent to the driver designed to reproduce it.
Two-way=Low and High or Three-way=Low, mid, high, or woofer, midrange, and tweeter.
Download Image For Larger View