dbx 166 Panduan Memulai Cepat - Halaman 3
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Halaman Cetak
CONTENTS
Front panel
(operation)
Rear
panel (connections)
Typical
hookups
(plug
and
cable
wiring)
Application notes
(gating,
compression,
limiting, sidechaln).
.
.
Block
diagram
Schematic
Warranty and
factory service
SPECIFICATIONS
Frequency
response
20
Hz-20
kHz
+0.5
dB
THD
(total
harmonic
distortion)
0.2%
at
maximum
compression,
1
kHz,
0
dBv
Equivalent input noise
-85
dBv
unweighted
Maximum
input
+24
dBv
Maximum
output
+21
dBv
Input
impedance
25
k-ohms
differential,
18.5
k-ohms
unbalanced
Detector:
6.8
k-ohms, unbalanced
Output
impedance
Low,
singie-ended,
for
driving
600
ohms
or greater
Output
gain
-20 to + 20
dB
Threshold range
Compressor:
-40 to +20
dBv
Gate: +10
to
-60
dBv
PeakStop:
0 to +21
dBv
Attack times
Compressor
(program-dependent):
15
ms
for 10
dB,
5
ms
for
20 dB,
3
ms
for
30
dB
Gate:
2
ms
for
28
dB
(70%
of return
to
unity gain)
Release times
Compressor:
8
ms
for
1
dB,
80
ms
for 10
dB,
400
ms
for
50
dB
(125 dB/s
rate)
Notes
1)
Speciiicetiofts
ere subject
to
change.
2)
AU
voltages are
rms
<root*mean-square).
3)
0
dBv
is
defined
as
0*773
V
regardless
of
load
impedance.
Subtract
2.2
from
the
dBv
figure to
convert to
dBV
<Ue.j
referred to
1
V).
When
the
load
impedance
is
600 ohms,
this
particular
dBv
is
also
known
as
"dBrn.**
4)
Noise
figures
are
for
20 Hz-20 kHz.
5)
Measured
in
the infinite-compression
region of the
dbx OverBasy
curve,
attack time
is
the
time
required to
reduce
the
signal
by
63%
of
the
level
increase
above
threshold,
while release
time
is
the
time
required
to
restore
gam
to
90%
of the
level
decrease below
threshold.
Gate,
slow:
100
ms
for
1
dB
fast:
100
ms
for
100
dB
Maximum
compression
Greater
than 60
dB
Power
requirements
90-135 V
(120V model),
200-260 V (240V
model),
50-60 Hz;
15
W
Dimensions
l-3/4"h x
19"w
X 8"d
2
2
4
7
13
14
15