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6
Inputs
Impedance
Input
Designed
for use with
Actual (In
-
ternal)
Input Clip-
ping Level
Mic
19–600
Ω
900
Ω
–15 dBV
Line
≤
10 k
Ω
66 k
Ω
T
o > +26
dBV
Monitor
≤1 k Ω
25 k
Ω
+21 dBV
Outputs
Impedance
Output
Designed
for use with
Actual (In
-
ternal)
Output
Clipping
Level
Mic
Any low–
impedance
mic input
0.5
Ω
–31 dBV
(28 mV)
min.
Tape
>10 k Ω 1 k Ω
–2 dBV
(800 mV)
Head-
phones
8–200
Ω,
200
Ω rec-
ommended
500
Ω
+6 dBV
(2.0 V)
Line
600
Ω
100
Ω
+19 dBm
(6.9 V) min.
Total
Harmonic Distortion
(controls centered [5],
+18 dBm at
Line
output)
<0.5%, 25 Hz to 20 kHz
Hum and Noise
Equivalent Input Noise
–128.5 dBV
.
. . . . . . . . . . . . . . . . . .
Equivalent
Input Hum and Noise
–128.5 dBV
.
. . . . . . . . . .
Output
Noise (300 Hz to 20 kHz; channel controls full coun
-
terclockwise))
Master full counterclockwise
–82 dBV
.
. . . . . . . . . . . . . .
Master full clockwise
–71 dBV
.
. . . . . . . . . . . . . . . . . . . . .
Output
Hum and Noise (20 Hz to 20
kHz; channel controls
full counterclockwise))
Master full counterclockwise
–74 dBV
.
. . . . . . . . . . . . . .
Master full clockwise
–70 dBV
.
. . . . . . . . . . . . . . . . . . . . .
Common
Mode Rejection
65 dB minimum with input of –20 dBV at 100 Hz
Polarity
Pin 2 of balanced inputs and outputs are in phase with tip
connections
of unbalanced inputs and outputs
Input Channel Activation
Attack Time 4 msec.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Hold
T
ime
0.4 sec (switchable to 1.0 sec)
.
. . . . . . . . . . . .
Decay
T
ime 0.5 sec.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Off–Attenuation
13 dB, fixed (switchable to
∞
)(single mixer; attenuation in
-
creases
as additional mixers are linked)
Overload and Shorting Protection
Shorting outputs, even for prolonged periods, causes no
damage.
Microphone inputs are not damaged by signals up
to
3 V
; Line and Monitor inputs by signals up to 20 V
Low–Cut Filters
6 dB/octave rollof
f below 170 Hz
Limiter
Threshold
+16 dBm (switchable to +8, +4, 0 dBm)
.
. . . . .
Attack
T
ime 3 msec.
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Recovery
T
ime
350 msec
.
. . . . . . . . . . . . . . . . . . . . . . . . . . .
Indicator Lights
when limiting is
occurring
.
. . . . . . . . . . . . .
Meter
VU Meter Calibration: 0 VU = +4 dBm (switchable to +8
dBm)
Peak
Meter:
Rise
T
ime:
2.0 msec time constant (0.9 msec/LED step)
Decay
T
ime: 180 msec time constant (83 msec/LED
step)
Tone
Oscillator
1 kHz, ±
10%, THD < 0.5%
Phantom Power
14
Vdc open–circuit, 1 k
Ω
series resistance, input
switches
in
Mic position only (internally switchable to 48
Vdc, 4.5 k
Ω
series resistance)
Operating Voltage
AC
Operation: 230 V
ac rated nominal, 160 to 264 V
ac fully
operational
, 50/60 Hz, 8 W
DC
Operation: 18 Vdc nominal at 25 mA typical no–signal,
33 mA typical at 0 VU (+4 dBm) output with 600 Ω load; 6
Vdc
minimum; battery life approximately 12
hours with alka
-
line batteries at +4 dBm output in continuous use at room
temperature;
two 9–volt batteries (type NEDA 1604A)
T
emperature Range
Operating –18°
to 57
° C (0°
to 135
°
F )
.
. . . . . . . . . . . .
Storage –29°
to 71
°
C (–20
°
to 160
°
F).
. . . . . . . . . . . . . .
Overall
Dimensions
44.5
mm H x 368 mm W x 210 mm
D (1
3
/
4
x 14
1
/
2
x 8
1
/
4
in
-
ches)(not
including feet)
Net Weight
2.27 kg (5 lb)
Certifications
Approved for safety by VDE under DIN VDE 0860/05.89
harmonized with CENELEC HD 195 S6.
Statement of Conformity
This certifies that the Automatic Microphone Mixer,
FP410E, meets the specifications and regulations embo-
died in vfg 243/1992. The Zentralamt für Zulassungen Im
Fernmeldewesen has been notified that this device has
been
marketed and has been provided the right to verify
the
device
or system for compliance with the specifications.