SPECIFICATIONS
dbx PRODUCT
WARRANTY
&
FACTORY SERVICE
Input Charactefistics
IMPEDANCE
Signal:
22
kohms, balanced; 11
kohms. unbalanced
Detector:
600
kohmi, balanced: 300
kohm$. unbalanced
LEVEL
Signal:
>+24
dB 112.3
V) maximum
Detector:
> +28
dB
08.6 VI maximum
Output
Characterietics
IMPEDANCE
Less than 47
ohms (active low Z outputi
LEVEL
> +23 dBm (11V) into a 600 ohm
or h igher
Z
termination
Performance
Characterietics
DISTORTION
2
nd harmonic, 0.05%
3rd
harmonic,
0.2%
(Auto or Manual with Attack &
Release Controls Centered)
A/OTS: Distortion
figurtssre typical
3t
infinite compression,
1 kHz. 0 dBm iO. 775
V} input and output. 2nd harmonic is
reiatively unaffected
by
compression ratio, ri/rte
constants and
frequency whi/e 3rd
harmonic decreases with slower time
constants,
higher frequency and lower compression ratto.
EQUIVALENT INPUT NOISE
Less than
-90d8m,
20
H2
to 20
kHz
ATTACK RATE* (63% dB
reduction
in
Signel Level)
Auto
Mode 15 mS for 10 dB level change,
5
mS
for
20 dB
level change. 3 mS
for
30 dB
level change
Manual Mode: Continuously variable from 1 to 400 dB
per
millisecond.
RELEASE
RATE*
Auto
Mode: 120d6/$econd
Manual Mode: Continuously variable
from
10 lo
4000 dB per second.
FREQUENCY RESPONSE
0,
-1
dB
from
20
Hz
to 20
kHz
Controls
THRESHOLD
Continuously variable from
-40
dB (7.8 mV) to
+
10 dB
(2.46 V)
COMPRESSION
RATIO
Continuously variable from 1 :1
to
infinity:!
ATTACK RATE
Continuously variable from 400
dB
per millisecond
to
1
dB
per millisecond
RELEASE RATE
Continuously variable from
4,000
dB per second to
10 dB per second
OUTPUT GAIN
Continuously variable from -20 dB
to
+20 dB
Mouring
RANGE
30 dB
(from -20 to *10 VU)
FUNCTION
Switchable
for input level,
output
level or gain change
CALIBRATION
Factory preset at 0 VU
*
'*'4
dB (1 .23 V);
rear panel
potentiometer
sets 0
VU for any level from
-10
dB
(7.8
mV)
to
+10 dB 12.45 V).
Connectors
SIGNAL
Jones type
barrier strip for signal input, signal output,
and
detector input.
STEREO COUPLER
12
pin
Cinch-Jones J-312-CCT connector
for strapping
two 1
65'$
together to process a
stereo program.
General
POWER REQUIREMENTS
117 V AC ±10%, 50
or
60
Hz; 234 V AC.
50
or 60 Hz
available on special order for use outside
the
U.S.
DIMENSIONS
19"
wide X
3-1/2"
high
x
10-1/8"
deep
(48.3 cm X 8.9
cm x
25.7 cm)
;
suitable for rack mounting
NET WEIGHT
8
Pounds (3.6 kg)
Measured in
the infinite compression
region of the over easy curve.
All dbx products are
covered by
a
limited warranty-
Consult your
warranty card or your local
dealer for full
details.
The
dbx Customer Service
Department is prepared to
give additional assistance in
the use of this product.
All
questions
regarding interfacing dbx
equipment with your
system,
service information or
information on special
applications will be answered.
You may call during
normal business
hours
—
Telephone:
617-964-3210,
Telex:
92*2522, or write to:
dbx, Inc.
71 Chapel
Street
Newton. MA 02195
Attn:
Customer Service Department
Should it become
necessary
to
have your
equipment
factory
serviced:
1.
Please repack the
unit, including
a
note describing
the problem
along with the day, month and
year of
purchase.
2.
Send the unit
freight prepaid to:
dbx, Inc.
224 Calvary Street
Waltham, MA 02154
Attn: Repair Department
3. We
recommend that you
insure the package and
send it via United
Parcel Service wherever
possible.
4. Please direct
all inquiries
to
dbx Customer
Service
Department,
Outside
the U.S.A.
—
contact your
nearest dbx dealer
for
the name and address of
the nearest authorized
repair center.
10
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