Technical Data Stereo Line Amp I43
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Technical Data STEREO LINE AMP I43
Version 4HE


Input Standard Version
Type electronically balanced
nominal Level + 6 dBu ± Gain
maximum Level ƒ ³ 40 Hz ³ + 30 dBu - Gain
Input Impedance ƒ 40 Hz - 15kHz ³ 20 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 Level 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 Level 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 accordint to IEC
Output optional Version -s
Type balanced floating, Transformer
nominal Level + 6 dBu
maximum Level 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 ± 20 dB ± 0.5 dB


Frequency Response ƒ 20 Hz - 20 kHz ± 0.25 dB
Phase Response 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 %


Crosstalk between L + R ƒ 40 Hz - 15 kHz £ 70 dB


Dynamic Range
Vu + 20 dB / 22Hz-22kHz RMS ³ 112 dB
Vu £ 0 dB / 22Hz-22kHz RMS ³ 118 dBu
Noise Level
Vu + 20 dB / 22Hz-22kHz RMS £- 86 dBu
Vu £ 0 dB / 22Hz-22kHz RMS £-92 dBu


Size INTEGRATOR-Standard Cassette 4HE/3HE


Control Elements Potentiometer
Gain-Range ± 20 dB - 0 dB Center Detent ± 0.5 dB
Channel Balance ± 3 dB regelbar - 0 dB Center Detent ± 0.3 dB
Input LEFT only / RIGHT only / L-R REVERSED
Phase Reversal Right Channel by Switch
RF-Filter Standard Version: @ 200 kHz >-6 dB
Filters by Switch FILT
High Pass Filter <20...600Hz / 12 dB/Oct
Low Pass Filter >25...2 kHz / 12 dB/Oct
Level Meter 4 Leds, Peak-Display -20...+20dBu