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Very good scanning quality. All schematics are very legible. Worth every cent !
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Excellent quality, very quick download turnaround, will definately use again.
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This is a awesome quality scan of the original Service Manual for Technics 8099.
Contains the circuit diagram, PCB layout, adjust/tune instructions as well.
Since this is my first buy here, i'm really glad! This site do works as intended/described, it's definitely not scam!
Мои рекомендации! Все мануалы настоящие!
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Good Quality of the File.
You get the normal manual is incudet.
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Very nice and real Service Manual, I didn't thought it actually exist in the real world at all.
GT1281 12" Woofer � Technical Data
VENTED BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS) SEALED BANDPASS BOX VOLUME (INCLUDES DRIVER/PORT DISPLACEMENTS)
length = 10.50"
Port
fo = 30.0 Hz
(2) Ports
fo = 60.0 Hz
length = 7.00"
GT1281
(side view)
GT1281
(side view)
diam. = 4"
VBOX = 2.25 ft3 (63.72 liters)
(all sides lined with 1-inch fiberglass or fiberfill)
diameter = 4"
V
REAR (all sides lined with 1-inch fiberglass or fiberfill)
= 1.75 ft3 (49.56 liters)
V
FRONT
= 1.50 ft3 (42.48 liters)
VENTED FREQUENCY RESPONSE @ 2.83 V
100 95 dB In-Car 12 dB LP @ 80 Hz 95
SEALED BANDPASS FREQUENCY RESPONSE @ 2.83 V
100 dB In-Car 12 dB LP @ 80 Hz
90
Out-Of-Car
90
Out-Of-Car
85
85
80
80
75
75
70
70
65
65
60 20 Frequency 50 100 Hz 200 500 1k
C
60 20 Frequency 50 100 Hz 200 500 1k
C
2k
2k
VENTED EXCURSION/GROUP DELAY @ 400 W
20.0 Xd mM T mSec 20 17.5 15 17.5
SEALED BANDPASS EXCURSION/GROUP DELAY @ 300 W
20.0 Xd mM T mSec 40 30
15.0
10
15.0
20
12.5 Group Delay 10
5
12.5 Group Delay
10
0
10.0
0
7.5
-5
7.5
-10
5.0
-10
5.0 Transducer Excursion
-20
2.5
Transducer Excursion
-15
2.5
-30
0.0 20 Frequency 50 100 Hz 200 500 1k
C
-20
0.0 20 Frequency 50 100 Hz 200 500 1k
C
-40
2k
2k
Harman Consumer Group � 250 Crossways Park Drive � Woodbury, NY 11797 � VOICE: 516-496-3400 � FAX: 516-496-4868 � www.jbl.com
 $4.99 GT1281 JBL
Owner's Manual Complete owner's manual in digital format. The manual will be available for download as PDF file aft…
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