Technical Data Equalizer
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Technical Data EQUALIZER
Version 4HE


Input Standard Version
Type electronically balanced
nominal Level + 6 dBu
maximum Level1) ƒ ³ 40 Hz ³ + 30 dBu - Gain
Input Impedance ƒ 40 Hz - 15kHz ³ 10 kW
CMRR ƒ 40 Hz £ 15 kHz ³ 60 dB according to IRT
Input optional Version -s
Type balanced floating, Transformer
nominal Level + 6 dBu ± Gain
maximum Level1) ƒ ³ 40 Hz ³ + 30 dBu - Gain
Input Impedance ƒ 40 Hz - 15kHz ³ 10 kW
CMRR ƒ 40 Hz £ 15 kHz ³ 60 dB according to IRT


Output Standard Version
Type electronically balanced
nominal Level + 6 dBu
maximum Level1) ƒ ³ 40 Hz, kges 1 % ³ + 30 dBu
³ + 22 dBu with unbalanced Load
Source Impedance ƒ 40 Hz - 15 kHz £ 60 W
Load Resistor ³ 1200 W for + 30 dBu ³ 600 W for + 27 dBu
CMRR ƒ 40 Hz - 15 kHz ³ 40 dB according to IEC
Output optional Version -s
Type balanced floating, Transformer
nominal Level + 6 dBu
maximum Level1) ƒ ³ 40 Hz, kges 1 % ³ + 30 dBu
Source Impedance ƒ 40 Hz - 15 kHz £ 60 W
Load Resistor ³ 1200 W for + 30 dBu ³ 600 W for + 27 dBu
CMRR ƒ £ 15 kHz ³ 40 dB according to IEC
CMRR ƒ £ 15 kHz ³ 60 dB according to IRT


Gain 2) all Controls @ 0 dB 1 kHz 0 dB ± 0.5 dB


Frequency Response 2) all Controls @ 0 dB ƒ 20 Hz - 20 kHz ± 0.75 dB
Phase Response 2)
Input/Output ƒ 40 Hz - 15 kHz £ +5°/-20°
Standard RF / Subsonic Filters


THD £ +22 dBu, ƒ ³ 40 Hz - 15 kHz, kges £ 0.1 %


Dynamic Range 2) Vu 0 dB/22Hz-22kHz RMS ³ 116 dB - Gain
Noise Level 2) Vu 0 dB / 22Hz-22kHz RMS £-90 dBu


Size INTEGRATOR-Standard Cassette 4HE / 3HE


Control Elements Potentiometer
EQ Verstärkung ± 20 dB ± 1 dB Center Detent 0 dB
Frequenzen MID1 60 Hz to 6 kHz ± 15 %
Frequenzen MID2 200 Hz to 20 kHz ± 15 %
Q-Factor > 3 Oktaven to Third
HI-EQ Shelf, Steep Rate, fo 20, 12, 8 kHz by Switch
LOW-EQ soft Bell, fo 40, 60, 100 Hz by Switch


1) Depending on the settings of the controls gain and attenuation is possible. Value refers to the higher level on input or output.
2) The value refers to linear setting of all EQ parameters.