2
Specifications: Models 4100, 41OORM
ELECTRICAL
CIRUITRY:
2 IC quad amplifiers, 2 IC regulators, 2
transistors, 2 zener diodes, 6 diodes, and 3
LED's. Precision-tuned inductors in all
negative feedback circuit, magnetically
shielded for low hum pickup.
OPERATING RANGE (FREQUENCY):
20 Hz (-3 dB) to 20 kHz (-1 dB).
CONTROL AANGE(FREGUENCY):
Ten bands (each channel) on one octave
I.S.O. centers from 31.5 Hz to 16 kHz.
CONTROL RANGE (AMPLITUDE):
-10 dB to +10 dB, continuously variable.
LOW-CUT CONTROL:
12 dB/octave active high-pass filter,
continuously variable from 20 Hz to 160
Hz.
GAIN:
Unity gain with all controls in flat position.
Calibrated attenuator at input of each
channel for level setting.
OPERATING LEVEL (INPUT):
0 dBm (approximately 0.8 Vrms)
recommended.
MAXIMUM OUTPUT:
+18 dBm with all controls in flat position.
OVERLOAD DETECTOR:
Peak level detector set approximately 2 dB
below maximum peak output. LED
indicators.
DISTORTION (THD):
(IM):
Less than .08%
at 0 dBm, worst case
control settings; less than 0.1%
at
+18 d Bm.
Less than .004%
(SMPTE).
NOISE:
Better than -92 dBm (19 microvolts) over
20 kHz bandwidth.
DYNAMIC RANGE:
110 dB.
INPUT IMPEDANCE:
Greater than 40 kilohms, single ended, AC
coupied.
OUTPUT IMPEDANCE:
Approximately 100 ohms.
OUTPUT LOAD:
600 ohms or greater.
FREGUENCY TOLERANCE:
±6%
of center frequency.
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