Using The High And Low Eq Controls - Alesis MULTIMIX 12R Reference Manual

Using the HIGH and LOW EQ controls

The Multimix 12R provides standard shelving EQ controls on each
channel. The HIGH knob range is +/- 15 dB with a shelving frequency
of 12 kHz. "Shelving" means that all frequencies above 12 kHz will be
boost or cut by the same amount , and frequency response between 1
kHz and 12 kHz will gradually rise or fall to the shelving point. The
LOW knob range is +/- 15 dB at a shelving frequency of 80 Hz. This
means that frequencies below 80 Hz will be boosted or cut by the
same amount, and frequency response will gradually rise or fall from
80 Hz to about 1 kHz. The frequency response range is shown in the
curve below:
+15 dB
-15 dB
20 Hz
✪
The normal position for the EQ controls is "12 o'clock" or straight up. A
"click" or detent will be felt at this position. At this position, the EQ does not
affect the frequency response of the channel--it is "flat".
Use only the amount of EQ necessary to achieve the desired effect.
Excessive boost on either EQ section may cause clipping in the channel
electronics, and will amplify noise.
Multimix 12R Reference Manual
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