Pyramid PM-7501 - Page 11

OPERATION
In order to provide smooth frequency control the effect of these controls
must overlap slightly Thus, the Ik Hz control has a slight effect on the
range of frequencies covered by the 400 Hz and the 2.4k Hz controls
SO Hz: Adjust the frequency in the low bass range (fow organ notes and bass
drums). Reduce rumbles or other low-frequency noise. You can also
use this control to compensate for poor bass response in a recording
or to reduce rumbler or other low frequency deficiencies.
150 Hz, Adjust the frequencies in the low to middle-bass range (tuned drums,
timpani and seme low-bass instruments
400 Hz. Adjust frequencies in the upper*bass range An over accentuated upper
bass yields a muddy, boomey sound. Too little upper bass makes the
music sound hollow and thin.
IK Hz Adjust the range of frequencies in the middle frequency range where
the ear is most sensitive (vocals). Boosting this range enhances the
vocals, cutting it makes the vocals blend back into the ensemble This
effent is often called 'presence'.
2.4K Hz Adjusts the range of frequencies in the upper*middle frequency range
that include vocals and some upper-midrange mstruments(such as clar¬
inet and saxophone). Boostng this range presence makes the program
sound 'brighter 1
6K Hz: Adjust the range of frequencies in the louver high frequency range that
includes flutes, oboes, viohne, piccfois and other treble instruments.
Boosting this range adds vibrancy to the upper voices, Too much
boost can make the music sound harsh
15K Hz' Adjust the high-frequency sounds (such as cymbals and other high-
frerquency sounds). Boosting this range adds brilliance to the music.
Boosting high-frequency too much makes the music piercing and
unpleasant Boosting too little causes the program to loss its brllicmco
and dimensionality
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