DigiTech QUAD4 User Manual download pdf (Page 28)

EQUALIZERS

The Quad 4 has a broad selection of equalizer Modules to cover virtually any need. Both mono and stereo modules

are available. Remember that mono equalizers connected to stereo sources will always sum the stereo signal togeth-

er for equalization (thus eliminating the stereo image). If you need to maintain the stereo image, use a stereo equal-

izer module.

The Parametrics allow you to cover very specific regions of the sound spectrum with extreme precision and control.

Up to 6 bands of either stereo, or mono parametric equalization are available.

The Graphic equalizers use 1/3, 2/3, or 1 2/3 octave ISO-standard frequency centers.

Mono GEQ15

Stereo GEQ15

Mono GEQ31

Stereo GEQ8

Mono GEQ8

Level Controls the signal input level fed to the Module. Varies from OFF to 100%.

Phase

Inverts the phase of the source signal. Can be set either IN or OUT of phase.

Phase L - R

Inverts the phase of the left or right side of the stereo source signal. Can be set

either IN or OUT of phase.

(Freq) Hz

Controls the amount of boost / cut applied to the selected frequency. The GEQ8

uses 1-1/3 octave ISO standard frequency centers, while the GEQ15 and GEQ31

use 2/3 octave and 1/3 octave frequencies. Boost / cut range for each band is

from -12 to 12.

PARAM. DESCRIPTION

Equalizers

✓✓

✓

✓✓

✓✓✓

✓

Stereo PEQ3

Mono PEQ6

✓✓✓

✓

Stereo PEQ6

✓

LoShlv Freq

Controls the center frequency of the low-frequency shelving EQ band. Ranges from

25 Hz to 20 kHz.

Band# Freq

Sets the center frequency of the selected band. 6-band PEQs have four true

parametric bands of EQ plus shelving high- and low-frequency controls with variable

frequency. Bands 1 and 2 range from 25 Hz to 20 kHz. Bands 3 and 4 range

from 1 kHz to 20 kHz.

LoShlv Level

Adjusts the amount of boost or cut applied to the frequency selected by

LOSHLV FREQ. Varies from -12 to 12.

Band# Width

Controls the bandwidth of the selected frequency. The higher the setting of WIDTH,

the more frequency-selective the boost / cut becomes. In other words, with low

(narrow) WIDTH settings, frequencies around the seleced center frequency are not

affected by the LEVEL setting. As WIDTH increases, frequencies around the center

frequency become affected by the setting of LEVEL.

Band# Level

Adjusts the amount of boost or cut applied to the selected frequency.

Varies from -12 to 12

✓✓

✓✓✓

✓

HiShlv Freq

Controls the center frequency of the high-frequency shelving EQ band.

Ranges from 1 kHz to 20 kHz.

HiShlv Level

Adjusts the amount of boost or cut applied to the frequency selected by

HISHLV FREQ. Varies from -12 to 12

✓✓

✓

Section 3 - Effects and Parameters

Quad 4 User's Manual

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DigiTech QUAD4 User Manual Page 28

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