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Technical Specifications MICROPHONE PREAMPLIFIER V778
Size V700-Module 1N
Eingänge Microphone Input
Mikrofon-Input
Type balanced, floating, torodial Transformer
nominal Level + 6 dBu - Gain
maximum Level ƒ ³ 40 Hz ³ + 30 dBu - Gain
Input Impedance ƒ 40 Hz - 15kHz ³ 1 kW
Source Resistance nominal Value 200 W
ohmic Load by Switch, off or 200 to 600 W
capacitive Load by Switch, off or 0.33 to 1.5 nF
CMRR ƒ 40 Hz - 15 kHz ³ 70 dB according to IRT
Subsonic-Filter LC, passive, in primary Winding of Transformer
Steepness > 12 dB/Octave
Corner Frequency Off, 20, 40 and 80 Hz by Stepper Switch
Gain coarse by Stepper Switch 0 ... 70 dB
Gain fine 0 to 10 dB by Pot
Phantom Phantom Power 48 V / 2 x 6.8 kW swtiched
Selection default
Frequency Response
Vu 0 ... 80 dB - ƒ 40 Hz - 15 kHz < ± 0.5 dB
Vu 0 ... 80 dB - ƒ 20 Hz - 20 kHz + 0.5/-1 dB
Phase Response
Input/Output ƒ 40 Hz - 15 kHz £ +5°/-25°
with Standard Values for RF & LF Filters
RF-Filter 200 kHz - 5 dB
THD £ +26 dBu, ƒ ³ 40 Hz - 15 kHz, kges £ 0.1 %
Dynamic Range Vu ³ 40 dB/22Hz-22kHz RMS ³ 157.5 dB - Gain
Noise Level Vu ³ 40 dB / 22Hz-22kHz RMS £-127.5 dBu + Gain
weighted Noise Level Vu ³ 40 dB/CCIR468 Quasi-Peak £-116.5 dBqp +Gain
Output
Type balanced, floating, torodial Transformer
nominal Level + 6 dBu
maximum Level at Vu > 0 dB ƒ ³ 40 Hz, kges 1 % ³ + 30 dBu
Source Impedance ƒ 40 Hz - 15 kHz £ 40 W
Load Resistance ³ 300 W
CMRR ƒ £ 15 kHz ³ 40 dB according to IEC
CMRR ƒ £ 15 kHz ³ 60 dB according to IRT
Frequency Response ƒ 20 Hz - 20 kHz ± 0.25 dB
Phase Response Input/Output ƒ 40 Hz - 15 kHz £ +10°/-25°
THD £ +26 dBu, ƒ ³ 40 Hz - 15 kHz, kges £ 0.1 %
Size V700-Module - StandardSize
Frame fits into Standard Frames
Control Elements Stepper Pots - 21 Steps
or Stepper Switch, respectively
Low-Pass Filter > 20 kHz to 2 kHz - 12 dB/Octave
High-Pass Filter < 20 Hz to 300 Hz, 24 dB/Octave
Activation Push Button FILT
Phase Reversal by Push Button
Level Indicator 3 LEDs, -20 dB, 0 dB,+ 20 dB
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