D.W. Fearn VT15 - Manual (Page 11)

D.W. FEARN
VT-15 Recording Channel
13
Mic Input 150 ohms
Input Load
Impedance
1.5k ohms
Minimum Input
Level
-65 dBm nominal
Maximum Input
Level @ 20 cps
-30 dBm without pad
-5 dBm with 20 dB pad
Instrument Input impedance 1 Megohm
Line Input
Load Impedance
40k ohms
Maximum Line Input
Level @ 20 cps
+25dBm (+35dBm with pad)
Gain <60 dB optimum
(capable of 75dB)
Frequency
Response
± 0.25 dB 20 cps to 20 kc
± 0.5 dB 11 cps to 28 kc
-3 dB @ 0.5 cps & 50 kc
THD + Noise <0.25% 20 cps to 20 kc
Intermodulation
Distortion
SMPTE: <0.80%
Signal to
Noise Ratio
72 dB typical operation
Equivalent
Input Noise
-124 dbm typical operation
Output low-Z, transformer balanced
Maximum
Output Level
+22 dBm unterminated
1 .
S P E C I F I C AT I O N S