I .
SPECIFICATIONS
TRACK SYSTEM
REEL
CAP
AOTY
HEADS
MOTORS
TAPE SPEED
WOW
&
FLUTTER
TAPE WINDING TIME
FREQUENCY RESPONSE
SIGNAL
TO
NOISE RATIO
DYNAMIC RANGE
HARMONIC DISTORTION
INPUT
OUTPUT
DIN
POWER REQUIREMENTS
POWER CONSUMPTION
DIMENSIONS
WEIGHT
4 Track 2 Channel Stereo System
Up
to
10"
reel
GX
head for Recording x 2
GX
head for Playback x 2
Erase head
x 2
AC
Servo
motor
for capstan drive x 1
AC
Eddy current
motor
for reel drive x 2
19
cm/s ± 0.8% (7-1/2 ips.)
9.5 cm/s ± 1.0% (3-3/4 ips.)
Less
than
0.03%
WRMS,
0.07% DIN 45500
at
19 cm/s
Less
than
0.04%
WRMS,
0.09% DIN 45500
at
9.5 cm/s
75 sec. using
360
m (1,200 ft.) Tape
25
to
33,000
Hz±
3
dB
at
19
emfs
25
to
26,000
Hz±
3 dB
(0
VU)
25
to
25,000
Hz
± 3 dB
at
9
.5
cm/s
25 to 15,000
Hz± 3 dB (0
VU)
Better than 65
dB
at 19 cm/s DIN 45500
12
8
dB
( dbx Switch
"ON",
1,000
Hz
Peak Recording level)
Less than 0.4% at 19 cm/s
MIC:
0.25 mV
Required microphone impedance: 600 ohms
Line: 70 mV
Line: 410 mV
at
O VU
Required load impedance: more than 20 kohms
Phone:
1.3
mW
Input: 2 mV (input impedance
10
kohms)
Output:
0.3 V
Required load impedance: more than
20
khoms
100 V,
50/60
Hz
for Japan
110 V
/120
V
/220
V
/240
V,
50/60
Hz
switchable
for
the
other countries.
JPN 80W
U/T 140W
440
(W)
x 493 (H) x 256 (D) mm
(17.3
x 19.4 x 10.l inches)
23.2
kg
(51.0 lbs)
* For improvement purposes, specifications and design are subject
to
change without notice.
*
"dbx"
is Trademark
of
dbx Incorporated.
---------------SERVICE
MANUAL
GX-747dbx---------------
4
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