D.W. Fearn VT-4 Vacuum Tube LC Equalizer 9
Input
600 ohms
Input Load
Impedance
40k ohms
Minimum Input
Level
-20 dBm nominal
Maximum Input
Level @ 20 cps
+25 dB
Gain
0 dB
Frequency
Response
± 0.5 dB 20 cps to 20 kc
-3 dB @ 0.5 cps & 80 kc
THD + Noise
<0.10% 20 cps to 20 kc
Intermodulation
Distortion
SMPTE: <0.80%
Signal to
Noise Ratio
82 dB minimum
Output
low-Z, transformer balanced
Maximum
Output Level
+22 dBm unterminated
Power
Requirements
100, 120, or 220 VAC
50/60Hz, 25 W
Dimensions
19” (48.26cm) W
5.25” (13.34cm) H
9” (22.86cm) D (VT-2 13” 22.9cm)
Weight
14 lbs (6.35 kg)
SPECIFICATIONS
Note: Throughout this manual, frequency is specified in cps (cycles per second) or kc
(kilocycles per second). These units of measurement correspond to Hz and kHz respec-
tively. Specifications subject to change without notice
(All measurements made with +4dBm in and out, Eq switched in
but all controls set to flat.)
