Presence Range
Refers to that area of the audio frequency spectrum which affects the perceived
presence of the sound. Assuming there is no echo or reverb, presence or the feeling
of being "up front" will be determined by the relative balance of those frequencies
falling roughly in the 2 kHz to 5 kHz range.
Voicing
Refers to the careful equalization of a speaker/amplifier system as in a recording
studio monitor or sound reinforcement, system to achieve a particular sound or effect.
GRAPH A / Vintage 4x12 / Close/Far Miked
Above graph shows increasing tonal complexity of a 4x12 Vintage cabinet as the microphone
is moved closer to the speaker cabinet. At 5 meters, note fewer peaks, less low range
"thump," and less mid-hi range notches in the lower, dashed line. The greater the coloration
of the signal, the richer (and livelier) your tone will be.
GRAPH B / Close Miked 2x12 / Open Back/Sealed Back
Above graph compares response from an open back (solid line) vs. sealed back (dashed
line) 2x12 speaker cabinet. Note uneven and lower level response below 200 Hz in sealed
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Summary of Contents for Microcab II
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