ART Pro Audio Pro Channel - Mic Preamp/Compressor/EQ - Manual (Page 15)

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“weight” or “beef” to a week vocal and cutting it can “thin out” a signal that takes up
too much room in the low end.
Lo-Mid Control
The Lo-Mid control is a dual concentric pot (i.e., there are two controls – one outer and
one inner). The outer control is used to select a frequency while the inner one is used to
apply boost or cut. The amount of boost or cut available depends on the setting of the
Lo-Mid (Wide/Narrow) switch: ±12dB for Wide and ±20dB for Narrow. Bandwidths
are approximately 1 octave and 1/3 octave, respectively. Also, the Lo-Mid control can
cover two frequency ranges depending on the position of the Lo-Mid (X 10/Norm)
switch; these ranges are 20Hz to 200Hz and 200Hz to 2KHz.
Lo-Mid (X10/Norm) Switch
The first Lo-Mid switch determines the frequency range covered by the Lo-Mid control
(above). In its “out” position, the range is set at 20Hz to 200Hz. In its “in” position, the
range is set at 200Hz to 2KHz. You’ll notice that the Low and Lo-Mid control ranges
overlap (meaning they cover the same frequencies); this is intentional and is one of the
powerful features of the equalizer.
Lo-Mid (Narrow/Wide) Switch
The second Lo-Mid switch determines the width of the frequency band that the Lo-Mid
control covers. In its Wide position (out), the Q is approximately 1.1. In its Narrow
position (in), the Q is approximately 3.3. In general, you’ll find that the Wide setting
yields the most musical, unobtrusive results. Conversely, Narrow is preferable for
“surgical” cutting of a frequency band without affecting adjacent frequencies too much.
Hi-Mid Control
Like the Lo-Mid control, the Hi-Mid control is a dual concentric pot. The outer control
is used to select a frequency while the inner control is used to apply boost or cut. The
Hi-Mid control can cover two frequency ranges, depending on the position of the Hi-
Mid (X 10/Norm) switch; these ranges are 200Hz to 2KHz and 2KHz to 20KHz.
Hi-Mid (X 10/Norm) Switch
The first Hi-Mid switch determines the frequency range covered by the Hi-Mid control
(above). In its “out” position, the range is set at 200Hz to 2KHz. In its “in” position, the
range is set at 2KHz to 20KHz.
Note: The Lo-Mid and Hi-Mid Frequency controls overlap in the 200Hz to 2KHz range.
This feature allows either or both controls to be used in this range and is extremely
useful if, for example, you want to cut at 200Hz and boost at 350Hz.
Hi-Mid (Narrow/Wide) Switch
The second Hi-Mid switch determines the width of the frequency band that the Lo-Mid
control covers. In its Wide position (out), the Q is approximately 1.1. In its Narrow
position (in), the Q is approximately 3.3. In general, you’ll find that the Wide setting
yields the most musical, unobtrusive results. Conversely, Narrow is preferable for